Other Comprehensive Income (Loss)-Schedule Of Tax Effects Allocated To Each Component Of Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized (losses) gains arising during the period, Before-Tax Amount	$ 793	$ (206)
Unrealized (losses) gains arising during the period, Tax Benefit (Expense)	(296)	14
Unrealized (losses) gains arising during the period, Net-of-Tax Amount	497	(192)
Less: reclassification adjustments for (losses) gains realized in net (loss) income, Before-Tax Amount
Less: reclassification adjustments for (losses) gains realized in net (loss) income, Tax Benefit (Expense)
Less: reclassification adjustments for (losses) gains realized in net (loss) income, Net-of-Tax Amount	0	0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax	793	(206)
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	(296)	14
Net unrealized gain/loss on securities	497	(192)
Foreign currency translation gain, Before-Tax Amount	(3,176)	3,091
Foreign currency translation gain, Tax Benefit (Expense)	(4)	(19)
Foreign currency translation gain, Net-of-Tax amount	(3,180)	3,072
Net unrealized fair value adjustment on derivatives designated as cash flow hedges, Before-Tax Amount	391	(1,246)
Net unrealized fair value adjustment on derivatives designated as cash flow hedges, Tax Benefit (Expense)	(141)	448
Net unrealized fair value adjustment on derivatives designated as cash flow hedges, Net of Tax Amount	250	(798)
Less: reclassification adjustments for cash flow hedges settled and included in net (loss) income, Before-Tax Amount	108	250
Less: reclassification adjustments for cash flow hedges settled and included in net (loss) income, Tax Benefit (Expense)	(39)	(90)
Less: reclassification adjustments for cash flow hedges settled and included in net income (loss)	69	160
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	499	(996)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	(180)	358
Fair value adjustment on derivatives designated as cash flow hedges arising during the period	319	(638)
Other comprehensive income, Before-Tax Amount	(1,884)	1,889
Other comprehensive income, Tax Benefit (Expense)	(480)	353
OTHER COMPREHENSIVE (LOSS) INCOME	$ (2,364)	$ 2,242