Condensed consolidated statements of cash flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 10,383	$ 31,639
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,792	9,907
Amortization of deferred financing costs	1,587	1,356
Amortization of asset retirement obligations	7	221
Deferred tax expense	4,126	2,165
Loss (gain) on re-measurement of tax benefit arrangement	(502)	3,373
Provision for bad debts	(33)	2
Equity-based compensation	947	1,315
Other	993	(269)
Changes in operating assets and liabilities, excluding effects of acquisitions:
Accounts receivable	21,409	20,032
Inventory	(1,943)	1,677
Other assets and other current assets	(250)	(2,648)
National advertising fund	(10,363)	(6,500)
Accounts payable and accrued expenses	6,381	(14,640)
Other liabilities and other current liabilities	(249)	214
Income taxes	(1,315)	1,768
Equipment deposits	2,386	4,594
Deferred revenue	25,992	3,668
Leases and deferred rent	774	60
Net cash provided by operating activities	73,122	57,934
Cash flows from investing activities:
Additions to property and equipment	(9,110)	(7,471)
Proceeds from sale of property and equipment	135	21
Net cash used in investing activities	(8,975)	(7,450)
Cash flows from financing activities:
Principal payments on capital lease obligations	(41)	(12)
Proceeds from borrowings under Variable Funding Notes	75,000	0
Repayment of long-term debt	(4,375)	(3,000)
Proceeds from issuance of Class A common stock	491	607
Dividend equivalent payments	(57)	(20)
Distributions to Continuing LLC Members	(1,600)	(1,842)
Net cash (used in) provided by financing activities	69,418	(4,267)
Effects of exchange rate changes on cash and cash equivalents	(1,640)	250
Net increase in cash, cash equivalents and restricted cash	131,925	46,467
Cash, cash equivalents and restricted cash, beginning of period	478,795	320,139
Cash, cash equivalents and restricted cash, end of period	610,720	366,606
Supplemental cash flow information:
Net cash paid for income taxes	2,071	1,479
Cash paid for interest	18,768	13,477
Non-cash investing activities:
Non-cash additions to property and equipment	$ 2,319	$ 4,151