Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 133,910	$ 143,867
Restricted cash	297	352
Accounts receivable	10,073	8,513
Inventories	3,291	3,691
Deferred income tax asset	3,917	3,838
Prepaid expenses and other current assets	17,206	14,645
Total current assets	168,694	174,906
Property and equipment:
Land	53,766	53,982
Buildings and building improvements	342,297	340,959
Leasehold improvements	165,555	164,075
Assets under capital leases	49,670	49,670
Equipment	256,608	253,890
Construction in progress	12,651	7,201
Total property and equipment	880,547	869,777
Accumulated depreciation and amortization	(413,556)	(402,022)
Property and equipment, net of accumulated depreciation	466,991	467,755
Goodwill	75,127	74,377
Intangible assets, net of accumulated amortization	931	957
Investments in unconsolidated affiliates (Note 10)	6,372	7,073
Deferred income tax asset	100,330	100,043
Other	19,287	19,510
Total assets	837,732	844,621
Current liabilities:
Accounts payable	36,653	43,321
Accrued expenses	48,093	42,579
Current maturities of capital leases and long-term financing obligations	7,231	6,870
Total current liabilities	91,977	92,770
Long-term liabilities:
Long-term debt	209,637	209,619
Capital leases and long-term financing obligations, less current maturities	236,804	238,763
Deferred revenue	31,537	31,827
Other	25,816	25,831
Total long-term liabilities	503,794	506,040
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, 23,528,038 shares issued and 23,012,967 shares outstanding at March 31, 2014, and 23,528,038 shares issued and 23,059,959 shares outstanding at December 31, 2013	701	698
Treasury stock, 515,071 and 468,079 shares at cost at March 31, 2014 and December 31, 2013, respectively	(13,397)	(11,914)
Paid-in capital	441,100	440,306
Accumulated deficit	(186,443)	(183,279)
Total stockholders' equity	241,961	245,811
Total liabilities and stockholders' equity	$ 837,732	$ 844,621