CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
OPERATING ACTIVITIES - continuing operations
Net income (loss)	$ (27,820)	$ 202,041	$ 23,581
Income from discontinued operations, including gain on sale, net of tax	(14,026)	(232,339)	(12,483)
Adjustments to reconcile net income (loss) to cash used in operating activities:
Depreciation and amortization	14,069	11,701	6,625
Equity-based compensation	23,889	6,411	6,236
Impairment related and other	1,092		1,130
Other (income) loss	(5,300)	4,210	(57,820)
Equity loss	776	2,963	8,672
Deferred income taxes	(4,510)
Income tax (benefit) expense related to income from discontinued operations	(8,934)	(17,571)	108
Changes in operating assets and liabilities - net of acquisitions:
Accounts receivable, net	(2,024)	(3,445)	(378)
Prepaid expenses and other assets	595	(817)	(703)
Accounts payable	(65)	(1,358)	2,643
Accrued expenses	252	1,192	1,501
Accrued compensation and benefits	510	3,310	755
Deferred revenue	7,765	5,325	9,928
Other liabilities	(488)	330	(423)
Cash flows used in operating activities	(14,219)	(18,047)	(10,628)
INVESTING ACTIVITIES - continuing operations
Capital expenditures, net	(3,677)	(1,243)	(6,990)
Change in restricted cash	193	(834)	(460)
Proceeds from sales/distributions of ownership interests	33,822	388,968	20,525
Proceeds from marketable securities		760	7,632
Ownership acquisition, net of cash acquired	(215,225)	(14,638)	(68,961)
Increase in cash due to consolidation/deconsolidation of subsidiaries		1,153
Cash flows provided by (used in) investing activities	(184,887)	374,166	(48,254)
FINANCING ACTIVITIES – continuing operations
Acquisition of noncontrolling interest in subsidiary equity	(878)	(15,430)
Borrowings of long-term debt		4,900
Repayment of long-term debt and capital lease obligations	(12,641)	(2,480)
Purchase of treasury stock	(12,809)	(12,025)	(8,354)
Tax withholdings related to equity-based awards	(5,029)	(12,023)	(425)
Cash received for stock option exercises	94	11	1,045
Other financing activities		(73)
Cash flows used in financing activities	(31,263)	(37,120)	(7,734)
Discontinued Operations
Cash flows provided by (used in) operating activities		5,216	8,260
Cash flows provided by (used in) investing activities	(1,153)	(2,302)	(17,285)
Cash flows provided by (used in) financing activities		(8,129)	3,685
Net increase (decrease) in cash and cash equivalents from discontinued operations	(1,153)	(5,215)	(5,340)
Net increase (decrease) in cash and cash equivalents	(231,522)	313,784	(71,956)
Cash and cash equivalents at beginning of period	334,656	20,872	47,186
Less: Cash and cash equivalents - discontinued operations at beginning of period			45,642
Cash and cash equivalents - continuing operations at end of period	$ 103,134	$ 334,656	$ 20,872