Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 83,736	$ 68,531
Restricted cash	13	293
Accounts receivable	8,528	6,555
Inventories	3,580	4,186
Deferred income tax asset	4,471	2,896
Prepaid expenses and other current assets	11,376	10,936
Total current assets	111,704	93,397
Property and equipment:
Land	51,841	51,876
Buildings and building improvements	334,990	335,738
Leasehold improvements	145,382	141,758
Assets under capital leases	44,970	44,970
Equipment	239,702	235,223
Construction in progress	6,843	5,185
Total property and equipment	823,728	814,750
Accumulated depreciation and amortization	(387,652)	(369,823)
Property and equipment, net of accumulated depreciation	436,076	444,927
Goodwill	44,577	44,577
Intangible assets, net of accumulated amortization	1,009	1,061
Investments in unconsolidated affiliates (Note 10)	6,036	7,682
Deferred income tax asset	100,912	100,012
Other	19,627	21,072
Total assets	719,941	712,728
Current liabilities:
Accounts payable	37,133	32,141
Accrued expenses	40,957	40,049
Current maturities of capital leases and long-term financing obligations	4,750	4,422
Total current liabilities	82,840	76,612
Long-term liabilities:
Long-term debt	209,583	209,548
Capital leases and long-term financing obligations, less current maturities	218,655	220,725
Deferred revenue	32,405	32,984
Other	24,986	23,425
Total long-term liabilities	485,629	486,682
Commitments and contingencies (Note 7)
Stockholders' equity:
Preferred Stock, $1.00 par value per share: 1,000,000 shares authorized, no shares issued
Common Stock, $0.03 par value per share: 35,000,000 shares authorized, 18,335,907 shares issued and 17,867,823 shares outstanding at June 30, 2013, and 18,244,179 shares issued and 17,786,949 shares outstanding at December 31, 2012	542	540
Treasury stock, 468,084 and 457,230 shares at cost at June 30, 2013 and December 31, 2012, respectively	(11,914)	(11,740)
Paid-in capital	350,982	349,666
Accumulated deficit	(188,138)	(189,032)
Total stockholders' equity	151,472	149,434
Total liabilities and stockholders' equity	$ 719,941	$ 712,728