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Derivative Instruments Derivative Instruments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments [Abstract]
Foreign Currency Contract, Asset, Fair Value Disclosure	$ 194		$ 194
Accumulated Unrealized Gain (Loss) on Cash Flow Hedging Instruments	142	102	142	102
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ 40	$ 275	$ 53	$ 0

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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