Deferred Court Costs, Net (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Dec. 31, 2010
Schedule of deferred court costs
Court costs advanced	$ 252,150		$ 228,977
Court costs recovered	(74,082)		(60,017)
Court costs reserve	(140,507)	(132,780)	(130,454)	(127,352)	(122,920)	(113,239)
Deferred court costs, net	$ 37,561		$ 38,506