XML 38 R75.htm IDEA: XBRL DOCUMENT v2.4.1.9
Commitments - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]      
Rent expenses $ 3.4us-gaap_OperatingLeasesRentExpenseNet $ 4.1us-gaap_OperatingLeasesRentExpenseNet $ 4.8us-gaap_OperatingLeasesRentExpenseNet
Inventory purchase commitment $ 3.0us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted $ 1.4us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted $ 1.8us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted