SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT [Schedule] Condensed Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Current assets:
Cash and cash equivalents	$ 38,653	$ 37,302	$ 29,523	$ 36,064
Prepaid and other	11,543	13,132
Total current assets	157,412	181,923
Property and equipment, net	20,050	17,838
Other assets	6,190	8,157
Total assets	193,468	216,546	205,834
Current liabilities:
Total current liabilities	67,168	90,515
Deferred rent and tenant improvement contributions	8,061	4,479
Total liabilities	86,927	109,189
Total stockholders’ equity	106,541	107,357	93,278	76,260
Total liabilities and stockholders' equity	193,468	216,546
Parent Company
Current assets:
Cash and cash equivalents	9,475	13,628	6,424	11,142
Prepaid and other	534	869
Total current assets	10,009	14,497
Property and equipment, net	1,971	2,536
Investment in and advances to/from subsidiaries	98,648	95,755
Other assets	1,193	2,377
Total assets	111,821	115,165
Current liabilities:
Accounts payable, accrued expenses and other current liabilities	3,523	5,417
Total current liabilities	3,523	5,417
Deferred rent and tenant improvement contributions	1,757	2,391
Total liabilities	5,280	7,808
Total stockholders’ equity	106,541	107,357
Total liabilities and stockholders' equity	$ 111,821	$ 115,165