CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net (loss) income	$ (2,699)	$ 311,631	$ 31,386
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	30,799	36,447	36,788
Amortization of intangible assets	28,412	35,367	47,576
Unrealized loss on investment in equity securities	12,972	0	0
Change in the fair value of acquisition related contingent consideration	0	24	(3,555)
Goodwill write-off from business exit (Note 11)	2,640	0	0
Share-based compensation expense	10,192	4,255	6,188
Bad debt expense	2,830	5,116	1,829
Gain on early extinguishment of debt	0	(5,637)	(5,464)
Amortization of debt discount	717	301	413
Amortization of debt issuance costs	965	833	1,141
Deferred income taxes	(5,791)	(297,336)	(2,597)
Loss on disposal of fixed assets	727	2,768	1,765
Gain on sale of business (Note 4)	(13,688)	0	0
Loss on debt refinancing (Note 14)	4,434	0	0
Changes in operating assets and liabilities, net of effect of acquisition:
Accounts receivable	14,556	29,965	15,980
Short-term investments in real estate	(10,468)	(16,380)	(13,025)
Prepaid expenses and other current assets	4,617	(5,754)	(7,856)
Other assets	2,278	770	1,053
Accounts payable and accrued expenses	1,651	2,576	(9,113)
Other current and non-current liabilities	(16,742)	(38,864)	24,309
Net cash provided by operating activities	68,402	66,082	126,818
Cash flows from investing activities:
Additions to premises and equipment	(3,916)	(10,514)	(23,269)
Acquisition of business, net of cash acquired	0	0	(9,409)
Proceeds from the sale of business (Note 4)	15,000	0	0
Purchase of investment in equity securities	0	0	(48,219)
Other investing activities	0	188	0
Net cash provided by (used in) investing activities	11,084	(10,326)	(80,897)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	407,880	0	0
Repayments and repurchases of long-term debt	(486,759)	(59,761)	(50,723)
Debt issuance costs	(5,042)	0	0
Proceeds from stock option exercises	3,644	2,374	9,558
Excess tax benefit on stock-based compensation	0	0	4,779
Purchase of treasury shares	(40,362)	(39,011)	(37,662)
Distributions to non-controlling interests	(2,819)	(2,772)	(2,580)
Payment of tax withholding on issuance of restricted shares and stock option exercises	(825)	(1,164)	0
Net cash used in financing activities	(124,283)	(100,334)	(76,628)
Net decrease in cash, cash equivalents and restricted cash	(44,797)	(44,578)	(30,707)
Cash, cash equivalents and restricted cash at the beginning of the period	108,843	153,421	184,128
Cash, cash equivalents and restricted cash at the end of the period	64,046	108,843	153,421
Supplemental cash flow information:
Interest paid	24,123	21,210	22,717
Income taxes paid, net	7,136	18,332	18,327
Non-cash investing and financing activities:
(Decrease) increase in payables for purchases of premises and equipment	$ (32)	$ (1,311)	$ 404