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Commitments and Contingencies (Tables)
 3 Months Ended
Feb. 28, 2014
Commitments and Contingencies Disclosure [Abstract]  
Changes in the Warranty Liability
The changes in our warranty liability are as follows (in thousands):
 
 
Three Months Ended February 28,
 
 
2014
 
2013
Balance at beginning of period
 
$
48,704

 
$
47,822

Warranties issued
 
3,426

 
2,766

Payments
 
(8,711
)
 
(8,929
)
Adjustments
 
—

 
1,674

Balance at end of period
 
$
43,419

 
$
43,333
Schedule of Self-Insurance Liability [Table Text Block]
The changes in our self-insurance liability are as follows (in thousands):
 
Three Months Ended February 28,
 
2014
 
2013
Balance at beginning of period
$
92,214

 
$
93,349

Self-insurance expense (a)
2,616

 
1,809

Payments, net of recoveries (b)
(4,414
)
 
(3,435
)
Balance at end of period
$
90,416

 
$
91,723

(a)
These expenses are included in selling, general and administrative expenses and are largely offset by contributions from subcontractors participating in the wrap-up policy.
(b)
Recoveries are reflected at the time we receive funds from subcontractors and/or their insurers.