Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 11,214	$ 24,390
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,722	11,099
Bad debt expense	3,860	2,560
Equity-based compensation expense	4,933	5,847
Deferred income tax expense	1,099	2,521
Fair value adjustments to contingent consideration	(355)	345
Other, net	229	1,048
Changes in operating assets and liabilities	(17,379)	(14,827)
Net cash provided by operating activities	16,323	32,983
Cash flows from investing activities:
Purchases of property, equipment and capitalization of software	(3,102)	(7,378)
Restricted cash acquired with the Marketing Funds acquisition	0	28,495
Other	0	(1,200)
Net cash (used in) provided by investing activities	(3,102)	19,917
Cash flows from financing activities:
Payments on debt	(1,322)	(1,311)
Distributions paid to non-controlling unitholders	(5,566)	(7,306)
Dividends and dividend equivalents paid to Class A common stockholders	(8,262)	(7,522)
Payments related to tax withholding for share-based compensation	(2,268)	(731)
Net cash used in financing activities	(17,418)	(16,870)
Effect of exchange rate changes on cash	(107)	109
Net (decrease) increase in cash, cash equivalents and restricted cash	(4,304)	36,139
Cash, cash equivalents and restricted cash, beginning of year	103,601	59,974
Cash, cash equivalents and restricted cash, end of period	99,297	96,113
Supplemental disclosures of cash flow information:
Cash paid for interest	4,608	5,948
Net cash paid for income taxes	1,682	3,885
Payments pursuant to tax receivable agreements	$ 0	$ 2,854