Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income (loss)	$ 21,158	$ (68,989)	$ 12,324
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	47,887	47,307	49,099
Insurance recovery related to damaged property	0	0	(3,194)
Impairment of fixed assets	14,571	4,569	714
Impairment of goodwill	31,558	137	0
Gain on sale of building	(77,146)	0	0
(Gain) loss on extinguishment of debt	(17,911)	493	750
Amortization of debt discount	1,288	1,304	996
Amortization of debt issuance costs	778	627	1,153
Amortization of building financing costs	124	31	0
Noncash rental income, net of non-cash rental expense	(3,647)	(5,399)	(5,692)
Share-based compensation expense	1,386	1,911	2,204
Net change in deferred taxes	(11,519)	40,129	6,120
Net change in certain operating assets and liabilities, net of acquisitions	9,185	(20,994)	898
Decrease in membership costs	4,367	1,329	2,086
Landlord contributions to tenant improvements	1,288	1,684	1,472
Increase (decrease) in insurance reserves	1,087	482	(929)
Other	416	137	(613)
Total adjustments	3,712	73,747	55,064
Net cash provided by operating activities	24,870	4,758	67,388
Cash flows from investing activities:
Capital expenditures	(30,471)	(42,054)	(30,861)
Change in restricted cash	(1,100)	0	0
Acquisition of businesses	0	0	(2,939)
Insurance recovery related to damaged property	0	0	3,194
Net cash used in investing activities	(31,571)	(42,054)	(30,606)
Cash flows from financing activities:
Proceeds from building financing arrangement	4,000	83,400	0
Building financing arrangement costs	0	(3,160)	0
Principal payments on 2013 Term Loan Facility	(3,038)	(16,716)	0
Proceeds from 2013 Senior Credit Facility, net of original issue discount	0	0	323,375
Repayment of 2011 Senior Credit Facility	0	0	(315,743)
Purchase of 2013 Term Loan Facility	(10,947)	0	0
Term loan issuance and amendment related financing costs	0	0	(4,356)
Debt issuance and debt amendment costs	(350)	0	(763)
Cash dividends paid	(213)	(7,877)	(4,088)
Redemption paid pursuant to the Rights Plan	(246)	0	0
Proceeds from stock option exercises	283	133	600
Tax benefit from restricted stock vesting	0	1,723	0
Net cash (used in) provided by financing activities	(10,511)	57,503	(975)
Effect of exchange rate changes on cash	(23)	(353)	33
Net (decrease) increase in cash and cash equivalents	(17,235)	19,854	35,840
Cash and cash equivalents beginning of period	93,452	73,598	37,758
Cash and cash equivalents end of period	76,217	93,452	73,598
Summary of the change in certain operating assets and liabilities:
Decrease in accounts receivable	1,446	25	2,859
Decrease (increase) in inventory	219	(101)	(36)
Decrease (increase) in prepaid expenses and other current assets	596	(1,549)	(1,278)
Increase (decrease) in accounts payable, accrued expenses and accrued interest	1,011	(9,856)	3,089
Change in prepaid corporate income taxes and corporate income taxes payable	4,774	(12,773)	1,604
Increase (decrease) in deferred revenue	1,139	3,260	(5,340)
Net change in certain working capital components	$ 9,185	$ (20,994)	$ 898