Basis of Presentation OCI PL reclassification (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 13,964		$ 16,362
Other Comprehensive Income (Loss), Net of Tax	(2,398)	1,295
Accumulated Translation Adjustment [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	10,323		13,905
othercomprehensiveincomelossbeforereclassificationsnetoftax	(3,582)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Other Comprehensive Income (Loss), Net of Tax	(3,582)
Investments [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	204		263
othercomprehensiveincomelossbeforereclassificationsnetoftax	(103)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(44)
Other Comprehensive Income (Loss), Net of Tax	(59)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	269		(110)
othercomprehensiveincomelossbeforereclassificationsnetoftax	326
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(53)
Other Comprehensive Income (Loss), Net of Tax	379
Net Investment Hedging [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	3,168		2,304
othercomprehensiveincomelossbeforereclassificationsnetoftax	864
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Other Comprehensive Income (Loss), Net of Tax	864
Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	13,964		16,362
othercomprehensiveincomelossbeforereclassificationsnetoftax	(2,495)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(97)
Other Comprehensive Income (Loss), Net of Tax	$ (2,398)