CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock Issued [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Non-controlling interest [Member]
Beginning Balance, Shares at Dec. 31, 2013		263,474	(84,672)
Beginning Balance at Dec. 31, 2013	$ 1,318,145	$ 2,635	$ (278,036)	$ 1,716,847	$ (121,556)	$ (1,745)	$ 0
Stock-based compensation				37,295
Common stock issued under stock compensation plans, net of shares withheld for employee taxes, Shares		1,664
Common stock issued under stock compensation plans, net of shares withheld for employee taxes		$ 16		(6,969)
Issuance of treasury stock to Nant Capital, LLC, Shares			0
Issuance of treasury stock to Nant Capital, LLC			$ 0	0
Tax deficiency realized upon exercise of stock-based awards				(123)
Accretion of redemption preference on redeemable convertible non-controlling interest in Netsmart				0
Purchase of treasury stock, Shares			0
Purchase of treasury stock			$ 0
Warrants issued				2,543
Net loss less net income attributable to non-controlling interests	(66,453)				(66,453)
Foreign currency translation adjustments, net	(529)					(529)
Unrecognized gain on derivatives qualifying as cash flow hedges, net of tax						279
Unrecognized (loss) gain on available for sale securities, net of tax						16
Acquisition of non-controlling interest							0
Net income attributable to non-controlling interest	0						0
Ending Balance, Shares at Dec. 31, 2014		265,138	(84,672)
Ending Balance at Dec. 31, 2014	1,284,220	$ 2,651	$ (278,036)	1,749,593	(188,009)	(1,979)	0
Stock-based compensation				31,961
Common stock issued under stock compensation plans, net of shares withheld for employee taxes, Shares		1,407
Common stock issued under stock compensation plans, net of shares withheld for employee taxes		$ 14		(3,445)
Issuance of treasury stock to Nant Capital, LLC, Shares			7,435
Issuance of treasury stock to Nant Capital, LLC			$ 88,283	10,017
Tax deficiency realized upon exercise of stock-based awards				(2,920)
Accretion of redemption preference on redeemable convertible non-controlling interest in Netsmart				0
Purchase of treasury stock, Shares			0
Purchase of treasury stock			$ 0
Warrants issued				4,243
Net loss less net income attributable to non-controlling interests	(2,226)				(2,226)
Foreign currency translation adjustments, net	(2,381)					(2,381)
Unrecognized gain on derivatives qualifying as cash flow hedges, net of tax						258
Unrecognized (loss) gain on available for sale securities, net of tax						(140)
Acquisition of non-controlling interest							11,019
Net income attributable to non-controlling interest	$ 170						170
Ending Balance, Shares at Dec. 31, 2015	266,545	266,545	(77,237)
Ending Balance at Dec. 31, 2015	$ 1,419,073	$ 2,665	$ (189,753)	1,789,449	(190,235)	(4,242)	11,189
Stock-based compensation				34,544
Common stock issued under stock compensation plans, net of shares withheld for employee taxes, Shares		1,452
Common stock issued under stock compensation plans, net of shares withheld for employee taxes		$ 15		(8,133)
Issuance of treasury stock to Nant Capital, LLC, Shares			0
Issuance of treasury stock to Nant Capital, LLC			$ 0	0
Tax deficiency realized upon exercise of stock-based awards				(1,280)
Accretion of redemption preference on redeemable convertible non-controlling interest in Netsmart				(28,536)
Purchase of treasury stock, Shares			(10,250)
Purchase of treasury stock			$ (121,240)
Warrants issued				3,915
Net loss less net income attributable to non-controlling interests	(25,652)				2,884
Foreign currency translation adjustments, net	(1,528)					(1,528)
Unrecognized gain on derivatives qualifying as cash flow hedges, net of tax						361
Unrecognized (loss) gain on available for sale securities, net of tax						(56,420)
Acquisition of non-controlling interest							29,400
Net income attributable to non-controlling interest	$ 146						146
Ending Balance, Shares at Dec. 31, 2016	267,997	267,997	(87,487)
Ending Balance at Dec. 31, 2016	$ 1,273,201	$ 2,680	$ (310,993)	$ 1,789,959	$ (187,351)	$ (61,829)	$ 40,735