CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
OPERATING ACTIVITIES - continuing operations
Net income (loss)	$ 171,543	$ 65,849	$ (100,345)
(Income) loss from discontinued operations, including gain on sale, net of tax	(193,877)	(79,399)	67,569
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:
Depreciation and amortization	719	134	382
Equity-based compensation	15,231	11,859	23,443
Impairment related and other	8,453	0	290
Other (income) loss, net	(5,880)	(2,988)	(1,532)
Income tax (benefit) expense related to income from discontinued operations	(11,838)	(7,939)	0
Changes in operating assets and liabilities - net of acquisitions:
Prepaid expenses and other assets	(1,213)	698	1,374
Accounts payable	(946)	684	(89)
Accrued expenses	(6,107)	(892)	522
Accrued compensation and benefits	(5,173)	(674)	(547)
Other liabilities	0	(32)	(27)
Cash flows provided by (used in) operating activities	(29,088)	(12,700)	(8,960)
INVESTING ACTIVITIES - continuing operations
Capital expenditures, net	(52)	(12)	(37)
Proceeds from sales/distributions of ownership interests	334,090	125,933	1,415
Ownership acquisition, net of cash acquired	(97)	(700)	(1,257)
Cash flows provided by (used in) investing activities	333,941	125,221	121
FINANCING ACTIVITIES – continuing operations
Acquisition of noncontrolling interests in subsidiary equity	0	0	(5,288)
Purchase of treasury stock	(30,434)	(74,265)	(1,702)
Tax withholdings related to equity-based awards	(15,965)	(1,828)	(4,279)
Financing activities with discontinued operations, net	0	(14,250)	(14,192)
Cash flows provided by (used in) financing activities	(46,399)	(90,343)	(25,461)
Net increase (decrease) in cash and cash equivalents from continuing operations	258,454	22,178	(34,300)
Discontinued operations:
Cash flows provided by (used in) operating activities	(14,351)	747	8,400
Cash flows provided by (used in) investing activities	(1,508)	(9,321)	(8,888)
Cash flows provided by (used in) financing activities	0	7,388	8,093
Effect of exchange rate on cash flows and cash equivalents	(99)	59	(126)
Net increase (decrease) in cash and cash equivalents from discontinued operations	(15,958)	(1,127)	7,479
Cash and cash equivalents at beginning of period - discontinued operations	20,834	21,961	14,482
Less: cash and cash equivalents at end of period - discontinued operations	4,876	20,834	21,961
Cash and cash equivalents at beginning of period	76,530	54,352	88,652
Cash and cash equivalents at end of period	$ 334,984	$ 76,530	$ 54,352