Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ 54,965	$ (112,451)
Adjustments to reconcile net income (loss) to cash flows provided by (used in) operating activities:
Non-cash impairment and closure charges	4,514	124,343
Depreciation and amortization	19,976	21,345
Non-cash stock-based compensation expense	5,612	6,670
Non-cash interest expense	1,427	1,318
Deferred income taxes	(10,007)	(10,793)
Deferred revenue	(4,678)	(4,840)
Loss on disposition of assets	137	1,543
Other	(3,608)	(252)
Changes in operating assets and liabilities:
Accounts receivable, net	4,928	(31,039)
Current income tax receivables and payables	5,315	(5,456)
Gift card receivables and payables	(3,837)	2,293
Other current assets	(2,036)	(2,503)
Accounts payable	6,195	(903)
Accrued employee compensation and benefits	1,466	(13,336)
Accrued advertising	31,066	13,012
Other current liabilities	(5,419)	532
Cash flows provided by (used in) operating activities	106,016	(10,517)
Cash flows from investing activities:
Principal receipts from notes, equipment contracts and other long-term receivables	9,703	10,772
Net additions to property and equipment	(4,064)	(7,380)
Proceeds from sale of property and equipment	946	456
Additions to long-term receivables	0	(1,475)
Other	(237)	(276)
Cash flows provided by investing activities	6,348	2,097
Cash flows from financing activities:
Repayment of long-term debt	(6,500)	0
Borrowing from revolving credit facility	0	220,000
Repayment of revolving credit facility	(220,000)	0
Dividends paid on common stock	0	(23,934)
Repurchase of common stock	0	(29,853)
Principal payments on finance lease obligations	(5,244)	(5,993)
Proceeds from stock options exercised	22,511	20,523
Repurchase of restricted stock for tax payments upon vesting	(1,403)	(2,129)
Tax payments for share settlement of restricted stock units	(9,783)	(178)
Cash flows (used in) provided by financing activities	(220,419)	178,436
Net change in cash, cash equivalents and restricted cash	(108,055)	170,016
Cash, cash equivalents and restricted cash at beginning of period	456,053	172,475
Cash, cash equivalents and restricted cash at end of period	347,998	342,491
Supplemental disclosures:
Interest paid in cash	33,405	34,108
Income taxes paid in cash	13,341	11,103
Non-cash conversion of accounts receivable to notes receivable	$ 1,640	$ 0