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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Summary of changes in loan origination liability

 
Three Months Ended
 
March 31,
 
2014
 
2013
Liabilities, beginning of period
$
124,956

 
$
164,280

Reserves provided and adjustments
(18,604
)
 
—

Payments
(3,380
)
 
(1,812
)
Liabilities, end of period
$
102,972

 
$
162,468
Summary of changes in warranty liability
Changes to warranty liabilities were as follows ($000’s omitted):
 
 
Three Months Ended
 
March 31,
 
2014
 
2013
Warranty liabilities, beginning of period
$
63,992

 
$
64,098

Reserves provided
8,780

 
10,070

Payments
(11,075
)
 
(11,035
)
Other adjustments
(65
)
 
19

Warranty liabilities, end of period
$
61,632

 
$
63,152
Summary of changes in self-insurance liability
Changes in these liabilities were as follows ($000's omitted):
 
Three Months Ended
 
March 31,
 
2014
 
2013
Balance, beginning of period
$
668,100

 
$
721,284

Reserves provided
14,855

 
14,470

Payments
(18,544
)
 
(18,730
)
Balance, end of period
$
664,411

 
$
717,024