Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Discontinued Operations and Disposal Groups [Abstract]
Total revenues, net of interest expense										$ 2,899
Loss from discontinued operations										(24,075)
Income tax expense/(benefit)										(429)
Loss from discontinued operations, net of taxes	$ 0	$ 0	$ 0	$ 0	$ 18,559	$ 5,087	$ 0	$ 0	$ 0	$ 23,646	$ 0