Derivatives and Other Financial Instruments - Narrative (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Derivative [Line Items]
Cumulative net after-tax gain related to net investment hedges	$ 2,300,000
Net after-tax unrealized gain included in accumulated AOCI expected to be transferred	(100,000)		(100,000)
Gain (loss) on fair value hedge derivatives	(100,000)	(300,000)
Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]
Amount of Loss Recognized in AOCI on Derivative (Effective Portion)	$ (4,000)	$ 184,000