Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 63,642	$ 68,531
Restricted cash	9	293
Accounts receivable	5,461	6,555
Inventories	3,550	4,186
Deferred income tax asset	3,639	2,896
Prepaid expenses and other current assets	15,741	10,936
Total current assets	92,042	93,397
Property and equipment:
Land	51,876	51,876
Buildings and building improvements	335,141	335,738
Leasehold improvements	143,711	141,758
Assets under capital leases	44,970	44,970
Equipment	236,780	235,223
Construction in progress	6,654	5,185
Total property and equipment	819,132	814,750
Accumulated depreciation and amortization	(377,882)	(369,823)
Property and equipment, net of accumulated depreciation	441,250	444,927
Goodwill	44,577	44,577
Investments in unconsolidated affiliates (Note 10)	6,231	7,682
Deferred income tax asset	100,541	100,012
Other	19,872	21,072
Intangible assets, net of accumulated amortization	1,035	1,061
Total assets	705,548	712,728
Current liabilities:
Accounts payable	29,208	32,141
Accrued expenses	40,228	40,049
Current maturities of capital leases and long-term financing obligations	4,547	4,422
Total current liabilities	73,983	76,612
Long-term liabilities:
Long-term debt, less current maturities	209,565	209,548
Capital leases and long-term financing obligations, less current maturities	219,746	220,725
Deferred revenue	32,695	32,984
Other	25,371	23,425
Total long-term liabilities	487,377	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, 18,309,979 shares issued and 17,841,895 shares outstanding at March 31, 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 March 31, 2013 and December 31, 2012, respectively	(11,914)	(11,740)
Paid-in capital	350,375	349,666
Accumulated deficit	(194,815)	(189,032)
Total stockholders' equity	144,188	149,434
Total liabilities and stockholders' equity	$ 705,548	$ 712,728