Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 123	$ 13
Assets, Fair Value Disclosure	123	13
Foreign Currency Contracts, Liability, Fair Value Disclosure	220	394
Accrued Liabilities, Fair Value Disclosure	2,352	2,289
Liabilities, Fair Value Disclosure	2,572	2,683
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	123	13
Assets, Fair Value Disclosure	123	13
Foreign Currency Contracts, Liability, Fair Value Disclosure	220	394
Accrued Liabilities, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure	220	394
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Accrued Liabilities, Fair Value Disclosure	2,352	2,289
Liabilities, Fair Value Disclosure	$ 2,352	$ 2,289