CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 8,169	$ 24,648
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	24,743	27,411
Amortization of intangible assets	21,311	27,143
Change in the fair value of acquisition related contingent consideration	0	24
Unrealized loss on investment in equity securities	4,186	0
Share-based compensation expense	6,150	3,237
Bad debt expense	2,408	3,101
Gain on early extinguishment of debt	0	(5,419)
Amortization of debt discount	513	225
Amortization of debt issuance costs	739	625
Deferred income taxes	(676)	0
Loss on disposal of fixed assets	723	2,776
Gain on sale of business	(13,688)	0
Loss on debt refinancing (Note 11)	4,434	0
Changes in operating assets and liabilities:
Accounts receivable	4,515	21,543
Prepaid expenses and other current assets	(16,880)	(17,272)
Other assets	554	760
Accounts payable and accrued expenses	10,774	165
Other current and non-current liabilities	(14,325)	(41,838)
Net cash provided by operating activities	43,650	47,129
Cash flows from investing activities:
Additions to premises and equipment	(4,207)	(7,485)
Proceeds from the sale of business (Note 3)	15,000	0
Net cash provided by (used in) investing activities	10,793	(7,485)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	407,880	0
Repayments and repurchases of long-term debt	(436,821)	(48,600)
Debt issuance costs	(5,042)	0
Proceeds from stock option exercises	3,576	2,084
Purchase of treasury shares	(21,771)	(24,995)
Distributions to non-controlling interests	(1,912)	(2,143)
Payment of tax withholding on issuance of restricted shares and stock option exercises	(608)	(1,088)
Net cash used in financing activities	(54,698)	(74,742)
Net decrease in cash, cash equivalents and restricted cash	(255)	(35,098)
Cash, cash equivalents and restricted cash at the beginning of the period	108,843	153,421
Cash, cash equivalents and restricted cash at the end of the period	108,588	118,323
Supplemental cash flow information:
Interest paid	17,889	16,203
Income taxes paid, net	4,162	15,445
Non-cash investing and financing activities:
Increase in payables for purchases of premises and equipment	$ 12	$ 52