CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 28,553	$ 29,772
Accounts receivable, net of allowance for doubtful accounts of $1,809 and $1,668, respectively	19,035	18,539
Prepaid expenses and other assets	13,438	13,270
Total current assets	61,026	61,581
Property and equipment, net	248,095	198,369
Investment in joint venture	3,000	2,936
Intangible assets, net	21,342	26,886
Goodwill	59,605	59,471
Deposits and other assets	5,735	5,371
Deferred tax asset, net	1,909	2,096
Total assets	400,712	356,710
Current liabilities:
Accounts payable	22,158	21,746
Accrued liabilities	11,386	9,152
Deferred revenues	2,991	2,475
Revolving credit facility		100
Capital lease obligations	4,504	2,154
Term loan, less discount of $239 and $206, respectively	3,261	2,794
Exit activities and restructuring liability	2,508	2,709
Other current liabilities	169	151
Total current liabilities	46,977	41,281
Deferred revenues	2,669	2,323
Capital lease obligations	44,054	38,923
Revolving credit facility	30,501
Term loan, less discount of $388 and $367, respectively	61,612	55,383
Accrued contingent consideration		4,626
Exit activities and restructuring liability	3,365	4,884
Deferred rent	15,026	16,100
Other long-term liabilities	903	1,020
Total liabilities	205,107	164,540
Commitments and contingencies (note 10)
Stockholders' equity:
Preferred stock, $0.001 par value, 20,000 shares authorized; no shares issued or outstanding
Common stock, $0.001 par value; 120,000 shares authorized; 53,459 and 52,528 shares outstanding, respectively	54	53
Additional paid-in capital	1,243,801	1,235,554
Treasury stock, at cost, 267 and 231 shares, respectively	(1,845)	(1,266)
Accumulated deficit	(1,046,190)	(1,041,872)
Accumulated items of other comprehensive loss	(215)	(299)
Total stockholders' equity	195,605	192,170
Total liabilities and stockholders' equity	$ 400,712	$ 356,710