Selected Quarterly Financial Data, Unaudited (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Selected Quarterly Financial Data, Unaudited
Total operating revenues	$ 239,079	$ 222,739	$ 220,248	$ 196,656	$ 212,066	$ 221,061	$ 233,033	$ 216,339	$ 878,722	$ 882,499	$ 927,749
Total cost of instant ticket revenues, services and sales	135,801	124,679	118,954	111,845	120,405	132,838	132,998	128,625	491,279	514,866	549,468
Selling, general and administrative expenses	52,382	47,660	43,426	39,554	42,957	36,435	40,552	38,556	183,022	158,500	168,248
Write-down of assets held for sale						2,155	5,874			8,029	54,356
Employee termination and restructuring costs	967	1,030				602			1,997	602	3,920
Depreciation and amortization	30,701	27,994	29,004	30,904	59,749	27,284	27,078	27,655	118,603	141,766	151,784
Operating income (loss)	19,228	21,376	28,864	14,353	(11,045)	21,747	26,531	21,503	83,821	58,736	(27)
Net income (loss)	$ (8,533)	$ (4,124)	$ 7,019	$ (6,932)	$ (158,449)	$ 8,704	$ (4,343)	$ 4,887	$ (12,570)	$ (149,201)	$ (39,879)
Basic and diluted earnings per share:
Basic net income (loss) income available to common shareholders (in dollars per share)	$ (0.09)	$ (0.04)	$ 0.08	$ (0.08)	$ (1.74)	$ 0.09	$ (0.05)	$ 0.05	$ (0.14)	$ (1.61)	$ (0.43)
Diluted net (loss) income available to common shareholders (in dollars per share)	$ (0.09)	$ (0.04)	$ 0.08	$ (0.08)	$ (1.74)	$ 0.09	$ (0.05)	$ 0.05	$ (0.14)	$ (1.61)	$ (0.43)
Weighted average number of shares used in per share calculations:
Basic shares (in shares)	92,187	92,125	92,069	91,886	91,277	91,844	93,552	93,993	92,068	92,666	92,701
Diluted shares (in shares)	92,187	92,125	92,565	91,886	91,277	92,240	93,552	94,662	92,068	92,666	92,701