Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income	$ 39,511	$ 114,843
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	30,854	28,209
Amortization of debt costs	6,602	6,245
Stock-based compensation	2,709	2,949
Long-lived asset impairments (Note 4)	19,356	0
Gains on refranchising	(154)	(17,900)
Changes in assets and liabilities:
Decrease in receivables	13,227	15,121
Decrease (Increase) in inventory	11,073	(53,073)
Decrease (Increase) in prepaid and other current assets	2,710	(11,715)
(Decrease) Increase in accounts payable	(38,607)	36,751
(Decrease) Increase in deferred revenue and accrued liabilities	(14,840)	6,558
Other operating activities	409	2,901
Net cash provided by operating activities	72,850	130,889
Cash flows from investing activities:
Capital expenditures	(20,397)	(20,809)
Refranchising proceeds	2,160	1,831
Store acquisition costs	(432)	(1,395)
Net cash used in investing activities	(18,669)	(20,373)
Cash flows from financing activities:
Borrowings under revolving credit facility	151,000	182,000
Payments on revolving credit facility	(147,000)	(40,000)
Payments on term loan facility	(40,853)	(2,275)
Debt issuance costs	0	(1,712)
Proceeds from exercise of stock options	0	305
Gross excess tax benefit from stock-based compensation	0	156
Minimum tax withholding requirements	(247)	(622)
Cash paid for treasury stock	0	(229,169)
Dividends paid to shareholders	0	(27,974)
Net cash used in financing activities	(37,100)	(119,291)
Effect of exchange rate changes on cash and cash equivalents	454	533
Net increase (decrease) in cash and cash equivalents	17,535	(8,242)
Beginning balance, cash and cash equivalents	34,464	56,462
Ending balance, cash and cash equivalents	51,999	48,220
Non-cash investing activities:
Accrued capital expenditures	2,141	2,714
Receivable related to sale of 84 company-owned stores to a franchisee	$ 0	$ 28,054