Fair Value Disclosures (Assets and Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011
Cross Currency Swaps [Member]
Derivatives measured at fair value on a recurring basis	$ (642)	[1]
Cross Currency Swaps [Member] | Quoted Prices In Active Markets For Identical Assets (Level I) [Member]
Derivatives measured at fair value on a recurring basis	0	[1]
Cross Currency Swaps [Member] | Significant Other Observable Inputs (Level 2) [Member]
Derivatives measured at fair value on a recurring basis	(642)	[1]
Cross Currency Swaps [Member] | Significant Unobservable Inputs (Level 3) [Member]
Derivatives measured at fair value on a recurring basis	0	[1]
Currency Forward Agreements [Member]
Derivatives measured at fair value on a recurring basis	(1,395)	[1]
Currency Forward Agreements [Member] | Quoted Prices In Active Markets For Identical Assets (Level I) [Member]
Derivatives measured at fair value on a recurring basis	0	[1]
Currency Forward Agreements [Member] | Significant Other Observable Inputs (Level 2) [Member]
Derivatives measured at fair value on a recurring basis	(1,395)	[1]
Currency Forward Agreements [Member] | Significant Unobservable Inputs (Level 3) [Member]
Derivatives measured at fair value on a recurring basis	$ 0	[1]

[1] Included in "Accounts payable and accrued liabilities" in the accompanying consolidated balance sheet.