Derivative Financial Instruments (Other Derivatives) (Details) (Foreign Exchange Forward [Member], Not Designated as Hedging Instrument [Member], USD $)	Sep. 30, 2014	Dec. 31, 2013
Derivative [Line Items]
Notional	$ 201,808,000	$ 279,302,000
Market Value	1,268,000	9,907,000
Indian rupees
Derivative [Line Items]
Notional	160,008,000	171,802,000
Market Value	780,000	11,105,000
Euros
Derivative [Line Items]
Notional	14,800,000	55,500,000
Market Value	266,000	(412,000)
British pounds
Derivative [Line Items]
Notional	27,000,000	52,000,000
Market Value	$ 222,000	$ (786,000)