Condensed Consolidated Statements of Cash Flows (Unaudited) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Operating activities:
Net income	$ 29,511
Adjustments to reconcile net income to net cash provided by continuing operating activities:
Depreciation and amortization	40,580
Amortization of debt issuance costs	2,888
Equity-based compensation expense	6,101
Deferred income taxes	(666)
Other	2,187
Change in operating assets and liabilities:
Accounts receivable, net	(11,980)
Other current assets	(5,875)
Other assets	295
Accounts payable and other accrued liabilities	(15,701)
Accrued salaries and benefits	(5,849)
Other liabilities	2,182
Net cash provided by continuing operating activities	43,673
Net cash provided by operating activities	43,673
Investing activities:
Cash paid for acquisitions, net of cash acquired	(40,400)
Cash paid for capital expenditures	(69,248)
Cash paid for real estate acquisitions	(1,066)
Other	613
Net cash used in investing activities	(110,101)
Financing activities:
Borrowings on revolving credit facility	71,573
Principal payments on long-term debt	(8,246)
Common stock withheld for minimum statutory taxes, net	(1,327)
Other	(3,497)
Net cash provided by (used in) financing activities	58,503
Effect of exchange rate changes on cash	1,099
Net (decrease) increase in cash and cash equivalents	(6,826)
Cash and cash equivalents at beginning of the period	50,510
Cash and cash equivalents at end of the period	43,684
Effect of acquisitions:
Assets acquired, excluding cash	44,028
Liabilities assumed	(3,628)
Cash paid for acquisitions, net of cash acquired	$ 40,400