|
Commitments and Contingencies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Commitments and Contingencies Disclosure [Abstract] | |||
| Rental expense | $ 3.0us-gaap_OperatingLeasesRentExpenseNet | $ 2.4us-gaap_OperatingLeasesRentExpenseNet | $ 3.2us-gaap_OperatingLeasesRentExpenseNet |
| Purchase commitments outstanding | $ 126.6us-gaap_LongTermPurchaseCommitmentAmount | ||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The minimum amount the entity agreed to spend under the long-term purchase commitment. No definition available.
|
| X | ||||||||||
|
- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|