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Commitments And Contingencies (Tables)
 9 Months Ended
Sep. 30, 2012
Commitments and Contingencies Disclosure [Abstract]  
Summary of changes in loan origination liability
Changes in these liabilities were as follows ($000's omitted):
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2012
 
2011
 
2012
 
2011
Liabilities, beginning of period
$
120,711

 
$
97,836

 
$
128,330

 
$
93,057

Reserves provided
—

 
—

 
—

 
19,347

Payments
(2,089
)
 
(3,105
)
 
(9,708
)
 
(17,673
)
Liabilities, end of period
$
118,622

 
$
94,731

 
$
118,622

 
$
94,731
Summary of changes in warranty liability
Changes to warranty liabilities were as follows ($000’s omitted):
 
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2012
 
2011
 
2012
 
2011
Warranty liabilities, beginning of period
$
64,364

 
$
70,521

 
$
68,025

 
$
80,195

Reserves provided
12,593

 
11,858

 
32,014

 
30,966

Payments
(10,976
)
 
(12,705
)
 
(34,336
)
 
(40,914
)
Other adjustments
(1,453
)
 
(827
)
 
(1,175
)
 
(1,400
)
Warranty liabilities, end of period
$
64,528

 
$
68,847

 
$
64,528

 
$
68,847
Summary of changes in self-insurance liability
Changes in these liabilities were as follows ($000's omitted):
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2012
 
2011
 
2012
 
2011
Balance, beginning of period
$
733,042

 
$
759,714

 
$
739,029

 
$
787,918

Reserves provided
15,557

 
14,790

 
37,772

 
42,000

Payments
(24,773
)
 
(18,104
)
 
(52,975
)
 
(73,518
)
Balance, end of period
$
723,826

 
$
756,400

 
$
723,826

 
$
756,400