Fair Value Disclosures (Assets and Liabilities Measured At Fair Value On A Recurring Basis) (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Cross Currency Swaps [Member]
Derivatives measured at fair value on a recurring basis	$ (316)	[1]	$ (709)	[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]	0	[1]
Cross Currency Swaps [Member] | Fair Value, Inputs, Level 2 [Member]
Derivatives measured at fair value on a recurring basis	(316)	[1]	(709)	[1]
Cross Currency Swaps [Member] | Significant Unobservable Inputs (Level 3) [Member]
Derivatives measured at fair value on a recurring basis	0	[1]	0	[1]
Currency Forward Agreements [Member]
Derivatives measured at fair value on a recurring basis	(1,566)	[1]	(3,453)	[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]	0	[1]
Currency Forward Agreements [Member] | Fair Value, Inputs, Level 2 [Member]
Derivatives measured at fair value on a recurring basis	(1,566)	[1]	(3,453)	[1]
Currency Forward Agreements [Member] | Significant Unobservable Inputs (Level 3) [Member]
Derivatives measured at fair value on a recurring basis	0	[1]	0	[1]
Interest Rate Swap [Member]
Derivatives measured at fair value on a recurring basis	(3,632)	[1]	(3,848)	[1]
Interest Rate Swap [Member] | Quoted Prices In Active Markets For Identical Assets (Level I) [Member]
Derivatives measured at fair value on a recurring basis	0	[1]	0	[1]
Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member]
Derivatives measured at fair value on a recurring basis	(3,632)	[1]	(3,848)	[1]
Interest Rate Swap [Member] | Significant Unobservable Inputs (Level 3) [Member]
Derivatives measured at fair value on a recurring basis	$ 0	[1]	$ 0	[1]

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