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Debt Outstanding Excluding Capital Leases

Debt outstanding, excluding capital leases, consists of the following:

	June 30, 2017						December 31, 2016
(In thousands)	Principal Balance		Unamortized Discount and Debt Issuance Costs		Net Carrying Amount		Principal Balance		Unamortized Discount and Debt Issuance Costs		Net Carrying Amount
1.25% Cash Convertible Senior Notes	$	345,000	$	42,662	$	302,338	$	345,000	$	49,186	$	295,814
Senior Secured Credit Facility		453,125		4,022		449,103		441,875		4,691		437,184
Netsmart Non-Recourse Debt:
First Lien Term Loan		430,749		10,703		420,046		432,925		11,655		421,270
Second Lien Term Loan		167,000		8,159		158,841		167,000		8,901		158,099
Other debt		0		0		0		13		0		13
Total debt	$	1,395,874	$	65,546	$	1,330,328	$	1,386,813	$	74,433	$	1,312,380
Less: Debt payable within one year - excluding Netsmart		21,875		462		21,413		15,638		480		15,158
Less: Debt payable within one year - Netsmart		4,351		1,891		2,460		4,351		1,900		2,451
Total long-term debt, less current maturities	$	1,369,648	$	63,193	$	1,306,455	$	1,366,824	$	72,053	$	1,294,771

Interest Expense

Interest expense consists of the following:

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2017		2016		2017		2016
Interest expense	$	4,668	$	3,595	$	9,502	$	7,133
Amortization of discounts and debt issuance costs		3,612		3,448		7,193		6,879
Netsmart:
Interest expense ⁽¹⁾		11,164		8,530		22,081		8,530
Amortization of discounts and debt issuance costs		846		848		1,694		848
Total interest expense	$	20,290	$	16,421	$	40,470	$	23,390

⁽¹⁾

Includes interest expense related to capital leases.

Summary of Future Debt Payment Obligations

The following table summarizes future debt payment obligations as of June 30, 2017:


(In thousands)	Total		Remainder of 2017		2018		2019		2020		2021		Thereafter
1.25% Cash Convertible Senior Notes ⁽¹⁾	$	345,000	$	0	$	0	$	0	$	345,000	$	0	$	0
Term Loan		228,125		9,375		28,125		40,625		150,000		0		0
Revolving Facility ⁽²⁾		225,000		0		0		0		225,000		0		0
Netsmart Non-Recourse Debt ⁽²⁾
First Lien Term Loan		430,749		2,176		4,351		4,351		4,351		4,351		411,169
Second Lien Term Loan		167,000		0		0		0		0		0		167,000
Total debt	$	1,395,874	$	11,551	$	32,476	$	44,976	$	724,351	$	4,351	$	578,169

⁽¹⁾ Assumes no cash conversions of the 1.25% Notes prior to their maturity on July 1, 2020.

⁽²⁾ Assumes no additional borrowings after June 30, 2017, payment of any required periodic installments of principal and that all drawn amounts are repaid upon maturity.

Interest Expense Related to 1.25% Notes

Interest expense related to the 1.25% Notes, included in the table above, consists of the following:

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2017		2016		2017		2016
Coupon interest at 1.25%	$	1,078	$	1,078	$	2,156	$	2,156
Amortization of discounts and debt issuance costs		3,278		3,108		6,524		6,216
Total interest expense related to the 1.25% Notes	$	4,356	$	4,186	$	8,680	$	8,372

Income Taxes (Tables)

6 Months Ended

Jun. 30, 2017

Income Tax Disclosure [Abstract]

Effective Tax Rates

	Three Months Ended June 30,						Six Months Ended June 30,
(In thousands)	2017			2016			2017			2016
(Loss) income before income taxes	$	(144,018	)	$	(2,639	)	$	(152,411	)	$	51
Income tax benefit (provision)	$	1,007		$	503		$	835		$	(60	)
Effective tax rate		0.7	%		19.1	%		0.5	%		117.6	%

Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2017

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Fair Value and Balance Sheet Locations

The following tables provide information about the fair values of our derivative financial instruments as of the respective balance sheet dates:

June 30, 2017

Asset Derivatives

Liability Derivatives

(In thousands)

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Derivatives qualifying as cash flow hedges:

Foreign exchange contracts

Prepaid expenses and

other current assets

2,054

Accrued expenses

Derivatives not subject to hedge accounting:

1.25% Call Option

Other assets

32,046

N/A

1.25% Embedded cash conversion option

N/A

Other liabilities

32,931

Total derivatives

34,100

32,931

December 31, 2016

Asset Derivatives

Liability Derivatives

(In thousands)

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Derivatives qualifying as cash flow hedges:

Foreign exchange contracts

Prepaid expenses and

other current assets

1,021

Accrued expenses

Derivatives not subject to hedge accounting:

1.25% Call Option

Other assets

17,080

N/A

1.25% Embedded cash conversion option

N/A

Other liabilities

17,659

Total derivatives

18,101

17,659

N/A – We define “N/A” as disclosure not being applicable

Derivatives Instruments Designated as Cash Flow Hedges

The following tables show the impact of derivative instruments designated as cash flow hedges on the consolidated statements of operations and the consolidated statements of comprehensive loss:

	Amount of Gain (Loss) Recognized in OCI (Effective Portion)					Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
(In thousands)	Three Months Ended June 30, 2017		Six Months Ended June 30, 2017		Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	Three Months Ended June 30, 2017		Six Months Ended June 30, 2017
Foreign exchange contracts	$	434	$	2,307	Cost of Revenue	$	255	$	433
					Selling, general and administrative expenses		194		331
					Research and development	$	300	$	510

	Amount of Gain (Loss) Recognized in OCI (Effective Portion)						Amount of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)
(In thousands)	Three Months Ended June 30, 2016			Six Months Ended June 30, 2016		Location of Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	Three Months Ended June 30, 2016		Six Months Ended June 30, 2016
Foreign exchange contracts	$	(141	)	$	201	Cost of Revenue	$	27	$	(4	)
						Selling, general and administrative expenses		22		(3	)
						Research and development	$	37	$	(6	)

Net Impact of Changes in Fair Value of Call Option and Embedded Cash Conversion Option

The following table shows the net impact of the changes in fair values of the 1.25% Call Option and the 1.25% Notes’ embedded cash conversion option in the consolidated statements of operations:

	Three Months Ended June 30,						Six Months Ended June 30,
(In thousands)	2017			2016			2017			2016
1.25% Call Option	$	(2,639	)	$	(10,507	)	$	14,966		$	(41,710	)
1.25% Embedded cash conversion option		2,631			10,577			(15,272	)		41,970
Net (loss) gain included in other income, net	$	(8	)	$	70		$	(306	)	$	260

Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2017

Equity [Abstract]

Components of Accumulated Other Comprehensive Loss

Changes in the balances of each component included in AOCI are presented in the tables below. All amounts are net of tax and exclude non-controlling interest.

(In thousands)	Foreign Currency Translation Adjustments			Unrealized Net (Losses) Gains on Available for Sale Securities			Unrealized Net Gains on Foreign Exchange Contracts			Total
Balance as of December 31, 2016 ⁽¹⁾	$	(6,028	)	$	(56,420	)	$	619		$	(61,829	)
Other comprehensive income (loss) before reclassifications		2,347			(85,652	)		1,411			(81,894	)
Net losses (gains) reclassified from accumulated other comprehensive loss ⁽²⁾		0			142,165			(777	)		141,388
Net other comprehensive income		2,347			56,513			634			59,494
Balance as of June 30, 2017 ⁽³⁾	$	(3,681	)	$	93		$	1,253		$	(2,335	)

⁽¹⁾

Net of taxes of $402 thousand for unrealized net gains on foreign exchange contract derivatives and $61 thousand for unrealized net gains on available for sale securities.

⁽²⁾

⁽³⁾

Net of taxes of $801 thousand for unrealized net gains on foreign exchange contract derivatives and $59 thousand for unrealized net gains on available for sale securities.

(In thousands)	Foreign Currency Translation Adjustments			Unrealized Net Losses on Available for Sale Securities			Unrealized Net Gains on Foreign Exchange Contracts		Total
Balance as of December 31, 2015 ⁽¹⁾	$	(4,500	)	$	0		$	258	$	(4,242	)
Other comprehensive (loss) income before reclassifications		(199	)		(18,115	)		121		(18,193	)
Net losses reclassified from accumulated other comprehensive loss		0			0			8		8
Net other comprehensive (loss) income		(199	)		(18,115	)		129		(18,185	)
Balance as of June 30, 2016⁽²⁾	$	(4,699	)	$	(18,115	)	$	387	$	(22,427	)

⁽¹⁾ Net of taxes of $166 thousand for unrealized net gains on foreign exchange contract derivatives.

⁽²⁾ Net of taxes of $251 thousand for unrealized net gains on foreign exchange contract derivatives.

Income Tax Effects Related to Components of Other Comprehensive Income (Loss)

The following tables reflect the tax effects allocated to each component of other comprehensive income (loss) (“OCI”):

	Three Months Ended June 30,
	2017									2016
(In thousands)	Before-Tax Amount			Tax Effect			Net Amount			Before-Tax Amount			Tax Effect		Net Amount
Foreign currency translation adjustments	$	832		$	0		$	832		$	(943	)	$	0	$	(943	)
Available for sale securities:
Net loss arising during the period		(10,952	)		1			(10,951	)		(18,115	)		0		(18,115	)
Net loss reclassified into income ⁽¹⁾		142,165			0			142,165			0			0		0
Net change in unrealized gains (losses) on available for sale securities		131,213			1			131,214			(18,115	)		0		(18,115	)
Derivatives qualifying as cash flow hedges:
Foreign exchange contracts:
Net gains (losses) arising during the period		434			(169	)		265			(141	)		55		(86	)
Net (gains) losses reclassified into income		(749	)		292			(457	)		(86	)		34		(52	)
Net change in unrealized (losses) gains on foreign exchange contracts		(315	)		123			(192	)		(227	)		89		(138	)
Net (loss) gain on cash flow hedges		(315	)		123			(192	)		(227	)		89		(138	)
Other comprehensive income (loss)	$	131,730		$	124		$	131,854		$	(19,285	)	$	89	$	(19,196	)

⁽¹⁾

	Six Months Ended June 30,
	2017									2016
(In thousands)	Before-Tax Amount			Tax Effect			Net Amount			Before-Tax Amount			Tax Effect			Net Amount
Foreign currency translation adjustments	$	2,347		$	0		$	2,347		$	(199	)	$	0		$	(199	)
Available for sale securities:
Net loss arising during the period		(85,654	)		2			(85,652	)		(18,115	)		0			(18,115	)
Net loss reclassified into income ⁽¹⁾		142,165			0			142,165			0			0			0
Net change in unrealized gains (losses) on available for sale securities		56,511			2			56,513			(18,115	)		0			(18,115	)
Derivatives qualifying as cash flow hedges:
Foreign exchange contracts:
Net gains (losses) arising during the period		2,307			(896	)		1,411			201			(80	)		121
Net (gains) losses reclassified into income		(1,274	)		497			(777	)		13			(5	)		8
Net change in unrealized gains (losses) on foreign exchange contracts		1,033			(399	)		634			214			(85	)		129
Net gain (loss) on cash flow hedges		1,033			(399	)		634			214			(85	)		129
Other comprehensive income (loss)	$	59,891		$	(397	)	$	59,494		$	(18,100	)	$	(85	)	$	(18,185	)

⁽¹⁾

Business Segments (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Revenues and Income from Operations Related to Segment Within Reconciliation to Consolidated Amounts

	Three Months Ended June 30,						Six Months Ended June 30,
(In thousands)	2017			2016			2017			2016
Revenue:
Clinical and Financial Solutions	$	286,674		$	282,254		$	567,129		$	553,697
Population Health		59,736			54,026			118,798			109,081
Netsmart		78,421			44,233			151,428			44,233
Unallocated Amounts		1,260			6,008			2,211			25,068
Total revenue	$	426,091		$	386,521		$	839,566		$	732,079

Gross Profit:
Clinical and Financial Solutions	$	119,286		$	121,319		$	233,004		$	235,340
Population Health		41,775			38,775			83,588			78,815
Netsmart		37,271			14,949			71,845			14,949
Unallocated Amounts		(10,841	)		(8,359	)		(22,294	)		(10,522	)
Total gross profit	$	187,491		$	166,684		$	366,143		$	318,582

Income (loss) from operations:
Clinical and Financial Solutions	$	63,023		$	67,386		$	118,009		$	128,224
Population Health		28,439			24,028			56,984			48,918
Netsmart		7,828			(2,399	)		16,757			(2,399	)
Unallocated Amounts		(78,186	)		(70,441	)		(159,383	)		(144,273	)
Total income from operations	$	21,104		$	18,574		$	32,367		$	30,470

Supplemental Disclosures (Tables)

6 Months Ended

Jun. 30, 2017

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule Of Supplemental Disclosures [Table Text Block]

The majority of the restricted cash balance as of June 30, 2017 represents Netsmart’s cash deposits to maintain two letters of credit with a financial institution related to customer agreements.

	Six Months Ended June 30,
(In thousands)	2017		2016
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	$	82,714	$	90,055
Restricted cash		6,400		600
Total cash, cash equivalents and restricted cash	$	89,114	$	90,655

Supplemental non-cash information:
Exchange of Netsmart, Inc. common stock for redeemable convertible preferred stock - Netsmart by Netsmart, Inc. management	$	0	$	25,543
Accretion of redemption preference on redeemable convertible non-controlling interest - Netsmart	$	21,925	$	8,153
Obligations incurred to purchase capitalized software or enter into capital leases	$	7,684	$	0
Issuance of treasury stock to commercial partner	$	334	$	0

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Mar. 31, 2017	Jun. 30, 2017
ASU 2016-09 [Member]
Summary Of Significant Accounting Policy [Line Items]
Decrease in accumulated deficit due to the recognition of excess tax benefit after valuation allowance	$ 1.8	$ 1.8

Business Combinations - Additional Information (Detail) - USD ($) $ in Thousands			3 Months Ended	6 Months Ended
	Oct. 27, 2016	Apr. 19, 2016	Mar. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill				$ 1,929,283	$ 1,924,052
Contribution and investment agreement date				Mar. 20, 2016
Homecare Business [Member]
Business Acquisition [Line Items]
Escrow deposit related to the integration of homecare business		$ 15,000		$ 12,800
Escrow deposit period		5 years
Netsmart [Member]
Business Acquisition [Line Items]
Netsmart transaction completion date				Apr. 19, 2016
HealthMEDX, LLC [Member]
Business Acquisition [Line Items]
Date of acquisition	Oct. 27, 2016
Business combination, aggregate consideration	$ 39,200
Business combination, adjustment of fair value of liability			$ 100
Increase in goodwill from subsequent adjustment of liability			$ 100
Asset Purchase Agreement [Member]
Business Acquisition [Line Items]
Asset purchase agreement date			Mar. 31, 2017
Aggregate cash consideration to acquire intellectual property, certain contractual relationships and certain associates			$ 4,000
Business combination, estimated consideration payable			700
Contingent consideration, fair value				$ 500
Goodwill			$ 4,400

Pro forma Results (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016
Netsmart [Member]
Business Acquisition [Line Items]
Revenue	$ 44,233	$ 44,233
Net loss	(7,113)	(7,113)
Combined Entity [Member]
Business Acquisition [Line Items]
Revenue	403,368	804,702
Net loss attributable to Allscripts Healthcare Solutions, Inc. stockholders	$ (45,494)	$ (60,490)
Loss per share, basic and diluted	$ (0.24)	$ (0.32)

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale marketable securities	$ 63,450	$ 149,100
Prepaid expenses and other current assets	113,563	102,551
Total	65,771	150,698
Foreign exchange derivative assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Prepaid expenses and other current assets	2,054	1,021
1.25% Notes Embedded Cash Conversion Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other liabilities	(32,931)	(17,659)
1.25% Call Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	32,046	17,080
Non-marketable Convertible Note [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	1,152	1,156
Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale marketable securities	63,450	149,100
Total	63,450	149,100
Level 1 [Member] \| Foreign exchange derivative assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Prepaid expenses and other current assets	0	0
Level 1 [Member] \| 1.25% Notes Embedded Cash Conversion Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other liabilities	0	0
Level 1 [Member] \| 1.25% Call Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	0	0
Level 1 [Member] \| Non-marketable Convertible Note [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	0	0
Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Total	2,054	1,021
Level 2 [Member] \| Foreign exchange derivative assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Prepaid expenses and other current assets	2,054	1,021
Level 2 [Member] \| 1.25% Notes Embedded Cash Conversion Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other liabilities	0	0
Level 2 [Member] \| 1.25% Call Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	0	0
Level 2 [Member] \| Non-marketable Convertible Note [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	0	0
Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Total	267	577
Level 3 [Member] \| Foreign exchange derivative assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Prepaid expenses and other current assets	0	0
Level 3 [Member] \| 1.25% Notes Embedded Cash Conversion Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other liabilities	(32,931)	(17,659)
Level 3 [Member] \| 1.25% Call Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	32,046	17,080
Level 3 [Member] \| Non-marketable Convertible Note [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	$ 1,152	$ 1,156

Summary of Long-term Equity Investments Included in Other Assets (Detail)
$ in Thousands

6 Months Ended

Jun. 30, 2017

USD ($)

Investment

Dec. 31, 2016

USD ($)

Fair Value Disclosures [Abstract]

Equity method investments, Number of Investees | Investment

^[1]

Cost method investments, Number of Investees | Investment

Total equity investments, Number of Investees | Investment

Equity method investments, Original Investment

^[1]

$ 1,658

Cost method investments, Original Investment

31,284

Total equity investments, Original Investment

32,942

Equity method investments, Carrying Value

3,693

$ 2,436

Cost method investments, Carrying Value

25,284

26,041

Total equity investments, Carrying Value

$ 28,977

$ 28,477

[1]	Allscripts share of the earnings of our equity method investees is reported based on a one quarter lag.

Fair Value Measurements and Long-term Investments - Additional Information (Detail) $ in Millions	3 Months Ended
	Jun. 30, 2017 USD ($)
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other-than-temporary impairment charges on available for sale marketable securities	$ 142.2
Available for sale marketable securities cost basis	$ 205.6
1.25% Cash Convertible Senior Notes [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Interest rate	1.25%
Equity Securities [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Other-than-temporary impairment charges on cost method equity investments	$ 2.1
Aggregate carrying value of cost method investments prior to impairment charges	$ 2.1

Stockholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Nov. 17, 2016
Class Of Stock [Line Items]
Capitalized stock-based compensation costs	$ 0	$ 0	$ 0	$ 0
Stock options granted	0	0	0	0
Share issued, exercise of options and release of stock awards			1,100,000		1,500,000
Shares settled for tax withholding			552,000	564,000
Common stock repurchased, amount			$ 12,077,000	$ 52,075,000
Netsmart [Member]
Class Of Stock [Line Items]
Liability for outstanding awards	$ 2,800,000		$ 2,800,000
Estimated weighted average fair value, Black-Scholes-Merton option pricing model	$ 0.15		$ 0.15		$ 1.00
November 2016 Stock Repurchase Program [Member]
Class Of Stock [Line Items]
Stock repurchase program, authorized amount						$ 200,000,000
Common stock repurchased, shares	1,000,000		1,000,000
Common stock repurchased, amount	$ 12,100,000		$ 12,100,000

Stock-Based Compensation Expense (Benefit) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	$ 11,151	$ 10,660	$ 19,987	$ 21,061
Netsmart [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense (benefit)	516	1,426	(3,028)	1,426
Cost of revenue [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	1,981	2,199	4,678	4,858
Cost of revenue [Member] \| Netsmart [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense (benefit)	23	62	(93)	62
Cost of revenue [Member] \| Software delivery, Support and Maintenance [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	988	1,061	2,113	2,230
Cost of revenue [Member] \| Software delivery, Support and Maintenance [Member] \| Netsmart [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense (benefit)	10	25	(25)	25
Cost of revenue [Member] \| Client services [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	993	1,138	2,565	2,628
Cost of revenue [Member] \| Client services [Member] \| Netsmart [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense (benefit)	13	37	(68)	37
Selling, General and Administrative Expenses [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	7,050	6,342	10,600	11,508
Selling, General and Administrative Expenses [Member] \| Netsmart [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense (benefit)	478	1,328	(2,859)	1,328
Research and development [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense	2,120	2,119	4,709	4,695
Research and development [Member] \| Netsmart [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock based compensation expense (benefit)	$ 15	$ 36	$ (76)	$ 36

Stock-Based Awards Granted (Detail) - $ / shares shares in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares, granted	169	3,082
Weighted-Average Grant Date Fair Value, granted	$ 12.06	$ 12.48
Service-Based Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares, granted	128	1,897
Weighted-Average Grant Date Fair Value, granted	$ 11.93	$ 12.38
Performance-Based Restricted Stock Units with a Service Condition [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares, granted	0	572
Weighted-Average Grant Date Fair Value, granted	$ 0.00	$ 11.93
Market-Based Restricted Stock Units with a Service Condition [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares, granted	41	613
Weighted-Average Grant Date Fair Value, granted	$ 12.49	$ 13.34

Calculations of Earnings (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Basic Loss per Common Share:
Net loss	$ (143,011)	$ (2,136)	$ (151,576)	$ (9)
Less: Net loss (income) attributable to non-controlling interests	264	87	(189)	9
Less: Accretion of redemption preference on redeemable convertible non-controlling interest - Netsmart	(10,963)	(8,153)	(21,925)	(8,153)
Net loss attributable to Allscripts Healthcare Solutions, Inc. stockholders	$ (153,710)	$ (10,202)	$ (173,690)	$ (8,153)
Weighted-average common shares outstanding	181,193	186,792	180,981	187,676
Basic Loss per Common Share	$ (0.85)	$ (0.05)	$ (0.96)	$ (0.04)
Diluted Loss per Common Share:
Net loss	$ (143,011)	$ (2,136)	$ (151,576)	$ (9)
Less: Net loss (income) attributable to non-controlling interests	264	87	(189)	9
Less: Accretion of redemption preference on redeemable convertible non-controlling interest - Netsmart	(10,963)	(8,153)	(21,925)	(8,153)
Net loss attributable to Allscripts Healthcare Solutions, Inc. stockholders	$ (153,710)	$ (10,202)	$ (173,690)	$ (8,153)
Weighted-average common shares outstanding	181,193	186,792	180,981	187,676
Plus: Dilutive effect of stock options, restricted stock unit awards and warrants	0	0	0	0
Weighted-average common shares outstanding assuming dilution	181,193	186,792	180,981	187,676
Diluted Loss per Common Share	$ (0.85)	$ (0.05)	$ (0.96)	$ (0.04)

Anti-Dilutive Stock Options, Restricted Stock Unit Awards and Warrants Excluded from Computation of Diluted Earnings (Loss) Per Share (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Shares subject to anti-dilutive stock options, restricted stock unit awards and warrants excluded from calculation	26,652	25,210	26,668	25,227

Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Schedule Of Goodwill And Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,441,725	$ 1,440,840
Accumulated Amortization	(821,775)	(778,437)
Intangible Assets, Net	619,950	662,403
Registered trademarks	79,000	79,000
Goodwill	1,929,283	1,924,052
Total	2,008,283	2,003,052
Proprietary Technology [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Gross Carrying Amount	628,082	627,819
Accumulated Amortization	(375,531)	(347,477)
Intangible Assets, Net	252,551	280,342
Customer Contracts and Relationships [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Gross Carrying Amount	813,643	813,021
Accumulated Amortization	(446,244)	(430,960)
Intangible Assets, Net	$ 367,399	$ 382,061

Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($)
Goodwill [Line Items]
Goodwill	$ 1,924,052
Other additions	4,590
Foreign exchange translation	641
Goodwill, net	1,929,283
Clinical and Financial Solutions [Member]
Goodwill [Line Items]
Goodwill	843,837
Other additions	40
Foreign exchange translation	641
Goodwill, net	844,518
Population Health [Member]
Goodwill [Line Items]
Goodwill	404,875
Other additions	47
Foreign exchange translation	0
Goodwill, net	404,922
Netsmart [Member]
Goodwill [Line Items]
Goodwill	675,340
Other additions	4,503
Foreign exchange translation	0
Goodwill, net	$ 679,843

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Accumulated impairment losses associated with goodwill	$ 0	$ 0

Asset and Long-term Investment Impairment Charges (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Asset And Long Term Investment Impairment Charges [Abstract]
Asset impairment charges	$ 0	$ 0	$ 0	$ 4,650
Impairment of long-term investments	$ 144,590	$ 0	$ 144,590	$ 0

Asset and Long-term Investment Impairment Charges - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016
Asset and Long-term Investment Impairment Charges [Line Items]
Asset impairment charges	$ 0	$ 0		$ 0	$ 4,650
Other charges			$ 400
Other than temporary non-cash impairment charges on long-term Investments	$ 144,590	$ 0		$ 144,590	$ 0
Capitalized Software Development Projects [Member]
Asset and Long-term Investment Impairment Charges [Line Items]
Asset impairment charges			2,200
Cost Method Equity Investments [Member]
Asset and Long-term Investment Impairment Charges [Line Items]
Asset impairment charges			$ 2,100

Debt Outstanding Excluding Capital Leases (Detail) - USD ($)
$ in Thousands

Jun. 30, 2017

Dec. 31, 2016

$ 1,395,874

$ 1,386,813

65,546

74,433

Principal Balance, Current

1,330,328

1,312,380

21,875

15,638

Unamortized Discount and Debt Issuance Costs, Current

462

480

Net Carrying Amount, Current

21,413

15,158

Principal Balance, Noncurrent

1,369,648

1,366,824

Unamortized Discount and Debt Issuance Costs, Noncurrent

63,193

72,053

Net Carrying Amount, Noncurrent

1,306,455

1,294,771

Netsmart [Member]

Principal Balance, Current

4,351

Unamortized Discount and Debt Issuance Costs, Current

1,891

1,900

Net Carrying Amount, Current

2,460

2,451

345,000

^[1]

345,000

42,662

49,186

Senior Secured Credit Facility [Member]

302,338

295,814

453,125

441,875

4,022

4,691

Netsmart Non-Recourse Debt First Lien Term Loan [Member]

449,103

437,184

430,749

432,925

10,703

11,655

Netsmart Non-Recourse Debt Second Lien Term Loan [Member]

420,046

421,270

167,000

8,159

8,901

158,841

158,099

Other Debt [Member]

$ 0

$ 13

[1]	Assumes no cash conversions of the 1.25% Notes prior to their maturity on July 1, 2020.

Interest Expense (Detail) - USD ($)
$ in Thousands

3 Months Ended

6 Months Ended

Jun. 30, 2017

Jun. 30, 2016

Jun. 30, 2017

Jun. 30, 2016

Convertible Senior Notes and Senior Secured Credit Facility [Member]

Total interest expense

$ 20,290

$ 16,421

$ 40,470

$ 23,390

Amortization of discounts and debt issuance costs

Interest expense

4,668

3,595

9,502

7,133

3,612

3,448

7,193

6,879

Netsmart [Member]

Amortization of discounts and debt issuance costs

846

848

1,694

848

Interest expense

^[1]

$ 11,164

$ 8,530

$ 22,081

$ 8,530

[1]	Includes interest expense related to capital leases.

Interest Expense Related to 1.25% Notes (Detail) - 1.25% Cash Convertible Senior Notes [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Debt Instrument [Line Items]
Coupon interest at 1.25%	$ 1,078	$ 1,078	$ 2,156	$ 2,156
Amortization of discounts and debt issuance costs	3,278	3,108	6,524	6,216
Total interest expense related to the 1.25% Notes	$ 4,356	$ 4,186	$ 8,680	$ 8,372

Debt - Additional Information (Detail) - USD ($)

6 Months Ended

Jun. 30, 2017

Dec. 31, 2016

Netsmart Revolving Facility [Member]

$ 1,395,874,000

$ 1,386,813,000

Debt instrument, interest rate, effective percentage

6.05%

LIBOR Rate [Member] | Netsmart Revolving Facility [Member]

4.75%

Term Loan [Member]

Allscripts Senior Secured Revolving Facility [Member]

^[1]

$ 228,125,000

Letters of credit outstanding

225,000,000

800,000

Credit facility, amount available

$ 324,200,000

Allscripts Senior Secured Revolving Facility [Member] | United States dollars [Member]

Debt instrument, interest rate, effective percentage

3.23%

Allscripts Senior Secured Revolving Facility [Member] | LIBOR Rate [Member]

2.00%

Netsmart First Lien Credit Agreement [Member] | Netsmart Revolving Facility [Member]

$ 345,000,000

^[2]

$ 345,000,000

Interest rate

1.25%

Letters of credit outstanding

$ 0

1,500,000

Credit facility, amount available

48,500,000

Netsmart First Lien Credit Agreement [Member] | Netsmart First Lien Term Loan [Member]

Netsmart Second Lien Credit Agreement [Member]

$ 430,700,000

Debt instrument, interest rate, effective percentage

10.70%

Netsmart Second Lien Credit Agreement [Member] | Netsmart Second Lien Term Loan [Member]

Netsmart Second Lien Credit Agreement [Member] | LIBOR Rate [Member]

$ 167,000,000

Netsmart First Lien Term Loan [Member]

9.50%

Debt instrument, interest rate, effective percentage

$ 430,749,000

5.80%

Netsmart First Lien Term Loan [Member] | LIBOR Rate [Member]

4.50%

[1]	Assumes no additional borrowings after June 30, 2017, payment of any required periodic installments of principal and that all drawn amounts are repaid upon maturity.
[2]	Assumes no cash conversions of the 1.25% Notes prior to their maturity on July 1, 2020.

Summary of Future Debt Payment Obligations (Detail) - USD ($)
$ in Thousands

Jun. 30, 2017

Dec. 31, 2016

$ 1,395,874

$ 1,386,813

11,551

32,476

44,976

724,351

4,351

578,169

345,000

^[1]

$ 345,000

^[1]

^[1]

^[1]

^[1]

345,000

2021

^[1]

Thereafter

^[1]

Term Loan [Member]

Netsmart First Lien Term Loan [Member]

^[2]

228,125

Remainder of 2017

^[2]

9,375

2018

^[2]

28,125

2019

^[2]

40,625

2020

^[2]

150,000

2021

^[2]

Thereafter

^[2]

Netsmart Second Lien Term Loan [Member]

430,749

2,176

4,351

4,351

4,351

4,351

411,169

Revolving Facility [Member]

167,000

167,000