Basis of Presentation OCI PL reclassification (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 17,219		$ 16,362
Other Comprehensive Income (Loss), Net of Tax	857	(2,324)
Accumulated Translation Adjustment [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	14,704		13,905
othercomprehensiveincomelossbeforereclassificationsnetoftax	799
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Other Comprehensive Income (Loss), Net of Tax	799
Investments [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	262		263
othercomprehensiveincomelossbeforereclassificationsnetoftax	(12)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(11)
Other Comprehensive Income (Loss), Net of Tax	(1)
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	(62)		(110)
othercomprehensiveincomelossbeforereclassificationsnetoftax	20
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(28)
Other Comprehensive Income (Loss), Net of Tax	48
Net Investment Hedging [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	2,315		2,304
othercomprehensiveincomelossbeforereclassificationsnetoftax	11
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Other Comprehensive Income (Loss), Net of Tax	11
Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	17,219		16,362
othercomprehensiveincomelossbeforereclassificationsnetoftax	818
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(39)
Other Comprehensive Income (Loss), Net of Tax	$ 857