Basis of Presentation OCI PL reclassification (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 16,834		$ 16,362
Other Comprehensive Income (Loss), Net of Tax	472	(1,053)
Accumulated Translation Adjustment [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	14,426		13,905
othercomprehensiveincomelossbeforereclassificationsnetoftax	521
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Other Comprehensive Income (Loss), Net of Tax	521
Investments [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	283		263
othercomprehensiveincomelossbeforereclassificationsnetoftax	(24)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(44)
Other Comprehensive Income (Loss), Net of Tax	20
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	(23)		(110)
othercomprehensiveincomelossbeforereclassificationsnetoftax	10
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(77)
Other Comprehensive Income (Loss), Net of Tax	87
Net Investment Hedging [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	2,148		2,304
othercomprehensiveincomelossbeforereclassificationsnetoftax	(156)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0
Other Comprehensive Income (Loss), Net of Tax	(156)
Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	16,834		16,362
othercomprehensiveincomelossbeforereclassificationsnetoftax	351
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(121)
Other Comprehensive Income (Loss), Net of Tax	$ 472