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Insurance Operations (Details 1) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Beginning and Ending balances and the changes in DPAC, net of DRCC        
DPAC, beginning of period $ 56,922 $ 59,129 $ 50,200 $ 50,128
Capitalized costs 26,849 30,759 82,529 87,551
Amortization of DPAC (26,606) (30,332) (75,564) (78,123)
DPAC, end of period 57,165 59,556 57,165 59,556
DRCC, beginning of period 39,178 47,103 38,845 40,682
Ceding commissions written 21,082 21,220 65,857 69,109
Earned ceding commissions (21,114) (21,780) (65,556) (63,248)
DRCC, end of period 39,146 46,543 39,146 46,543
DPAC (DRCC), net, beginning of period 17,744 12,026 11,355 9,446
Capitalized costs, net 5,767 9,539 16,672 18,442
Amortization of DPAC (DRCC), net (5,492) (8,552) (10,008) (14,875)
DPAC (DRCC), net, end of period $ 18,019 $ 13,013 $ 18,019 $ 13,013