Derivatives and Other Financial Instruments - Narrative (Details) (USD $)	2 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended	15 Months Ended	9 Months Ended
	Sep. 01, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013	Sep. 30, 2013 Foreign Exchange Forward Contracts [Member]	Sep. 30, 2012 Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]
Cumulative net after-tax gain related to net investment hedges		$ 3,000,000		$ 3,900,000	$ 3,000,000
Net after-tax unrealized gain included in accumulated AOCI expected to be transferred		(100,000)		(100,000)
Amount of Loss Recognized in AOCI on Derivative (Effective Portion)						(180,000)	(31,000)
Gain (loss) on fair value hedge derivatives	$ (200,000)	$ (100,000)	$ (700,000)		$ (300,000)