CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (7,977)	$ (28,515)
Less: Loss from discontinued operations	0	(3,354)
Loss from continuing operations	(7,977)	(25,161)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	50,126	47,948
Operating right-of-use asset amortization	5,320	0
Stock-based compensation expense	11,658	9,957
Deferred taxes	6	723
Asset impairment charges	98	0
(Recovery) impairment of long-term investments	(1,045)	5,500
Equity in net loss of unconsolidated investments	64	61
Loss on sale of businesses, net	0	871
Other income (losses), net	172	(941)
Changes in operating assets and liabilities (net of businesses acquired):
Accounts receivable and contract assets, net	32,307	33,075
Prepaid expenses and other assets	3,658	(6,501)
Accounts payable	7,382	4,707
Accrued expenses	(4,847)	13,670
Accrued compensation and benefits	(39,525)	(18,610)
Deferred revenue	(17,107)	(13,894)
Other liabilities	1,380	2,910
Operating leases	(5,854)	0
Net cash provided by operating activities - continuing operations	35,816	54,315
Net cash (used in) provided by operating activities - discontinued operations	(30,000)	3,993
Net cash provided by operating activities	5,816	58,308
Cash flows from investing activities:
Capital expenditures	(4,847)	(7,508)
Capitalized software	(28,600)	(26,168)
Cash paid for business acquisitions, net of cash acquired	0	(107,212)
Sales (purchases) of equity securities, other investments and related intangible assets, net	32	0
Other proceeds from investing activities	5	37
Net cash used in investing activities - continuing operations	(33,410)	(140,851)
Net cash used in investing activities - discontinued operations	0	(8,961)
Net cash used in investing activities	(33,410)	(149,812)
Cash flows from financing activities:
Proceeds from sale or issuance of common stock	0	212
Taxes paid related to net share settlement of equity awards	(5,327)	(8,496)
Payments of lease obligations	(55)	(255)
Credit facility payments	(5,000)	0
Credit facility borrowings, net of issuance costs	120,000	145,843
Repurchase of common stock	(65,070)	(57,599)
Payment of acquisition financing obligations	0	(3,226)
Purchases of subsidiary shares owned by non-controlling interest	(54,064)	0
Net cash (used in) provided by financing activities - continuing operations	(9,516)	76,479
Net cash used in financing activities - discontinued operations	0	(3,766)
Net cash (used in) provided by financing activities	(9,516)	72,713
Effect of exchange rate changes on cash and cash equivalents	163	65
Net decrease in cash and cash equivalents	(36,947)	(18,726)
Cash, cash equivalents and restricted cash, beginning of period	184,795	162,498
Cash, cash equivalents and restricted cash, end of period	147,848	143,772
Less: Cash and cash equivalents included in current assets attributable to discontinued operations	0	(19,105)
Cash, cash equivalents and restricted cash, end of period, excluding discontinued operations	$ 147,848	$ 124,667