Financial Instruments, Derivative Instruments and Hedging (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Gains (Losses) Recognized in Operations and Accumulated Other Comprehensive Income (Loss) for Derivatives

			Gain (Loss) Reclassified from				Gain (Loss) on Derivative
	Loss Recognized		Accumulated				Ineffectiveness and
Derivatives in Cash Flow	in OCI on Derivatives		OCI into Income				Amounts Excluded from
Hedging Relationships	(Effective Portion)		(Effective Portion)				Effectiveness Testing
				Location		Amount		Location	Amount
Year ended December 31, 2012
Foreign exchange contracts	$	(694)		Revenue	$	(6,502)		Revenue	$	242
								Interest income	$	-
Year ended December 31, 2011
Foreign exchange contracts	$	(8,821)		Revenue	$	(17,935)		Revenue	$	(411)
								Interest income	$	(1)
Year ended December 31, 2010
Foreign exchange contracts	$	(15,790)		Revenue	$	6,054		Revenue	$	636
								Interest income	$	(13)

Cash Flow Derivatives Not Designated as	Gain (Loss) Recognized in Income
Hedging Instruments	on Derivatives
	Location		Amount
Year ended December 31, 2012
Foreign exchange contracts		Revenue	$	55
		Other income		1,316
Year ended December 31, 2011
Foreign exchange contracts		Revenue	$	(254)
Year ended December 31, 2010
Foreign exchange contracts		Revenue	$	33

Foreign Exchange Contracts [Member]

Fair Values And The Location Of Company's Derivative Financial Instruments In The Consolidated Balance Sheet

	Asset Derivatives			Liability Derivatives
	Balance Sheet			Balance Sheet
	Location	Fair Value		Location			Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts					Other current liabilities	$	$ 2,381
					Other liabilities		2,185
							4,566
Derivatives not designated as hedging instruments
Foreign exchange contracts	Other current assets	$	1
					Other liabilities		56
Total derivatives		$	1			$	$ 4,622