CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (1,683)	$ (8,323)
Adjustments to reconcile net loss to net cash provided by operating activities:
Stock-based compensation expense	7,256	5,239
Depreciation	14,980	13,931
Amortization of intangibles	12,954	13,116
Amortization of debt issuance costs and debt discount	1,151	1,072
Deferred income taxes	(181)	(2,671)
Change in fair value of contingent consideration	109	379
Other	(295)	1,129
Changes in assets and liabilities:
Accounts receivable	1,614	(13,893)
Prepaid expenses and other current assets	635	(802)
Income taxes receivable	(3,624)	2,830
Other assets	(862)	19
Accounts payable and accrued expenses	(2,844)	182
Accrued compensation	(15,558)	(3,602)
Other current and non-current liabilities	(2,996)	(2,056)
Deferred revenue	3,443	8,205
Net cash provided by operating activities	14,099	14,755
Cash flows from investing activities:
Maturities of short-term investments	0	5,164
Purchases of property and equipment	(5,533)	(3,796)
Investment in capitalized software	(10,940)	(7,626)
Net cash used in investing activities	(16,473)	(6,258)
Cash flows from financing activities:
Proceeds from credit facility borrowings	99,000	0
Repayment of credit facility borrowings	(2,450)	(2,450)
Payments for debt issuance costs	(1,000)	0
Proceeds from exercise of stock options	183	0
Finance lease liabilities paid	(631)	(672)
Tax payments for equity award issuances	(2,947)	(1,086)
Net cash provided by (used in) financing activities	92,155	(4,208)
Increase in cash and cash equivalents	89,781	4,289
Cash and cash equivalents, beginning of period	93,094	115,591
Cash and cash equivalents, end of period	182,875	119,880
Supplemental cash flow disclosure:
Income taxes paid (received), net	357	(1,931)
Interest paid	13,092	15,602
Non-cash transactions:
Accruals for purchases of property and equipment	1,606	1,590
Accruals for investment in capitalized software	1,440	1,776
Accruals for purchase of intangible assets	$ 10,819	$ 0