XML 14 R48.htm IDEA: XBRL DOCUMENT v2.4.0.6
Rollforward of Warranty Reserve (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Commitments and Contingencies Disclosure [Line Items]  
Beginning balance $ 13,842
Warranty reserve related to acquisitions 275
Warranty expense 6,441
Warranty claims (6,153)
Ending balance $ 14,405