Deferred Court Costs, Net (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Schedule of deferred court costs      
Court costs advanced $ 279,314 $ 228,977  
Court costs recovered (94,827) (60,017)  
Court costs reserve (149,080) (130,454) (113,239)
Deferred court costs, net $ 35,407 $ 38,506