Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Derivative Financial Instruments [Abstract]

Summary of (gains) losses related to assets and liabilities denominated in foreign currencies

	Three Months Ended June 30,						Six Months Ended June 30,
(Amounts in thousands)	2012			2011			2012			2011
Net realized foreign currency losses (gains)	$	5,630		$	(2,130	)	$	1,144			(8,720	)
Net (gains) losses from the related forward contracts		(5,267	)		4,440			(1,302	)		12,525
Net losses (gains) from foreign currency transactions and related forward contracts	$	363		$	2,310		$	(158	)	$	3,805

Fair values of derivative forward contract instruments

			Derivative Assets				Derivative Liabilities
(Amounts in thousands)	Balance Sheet Location		June 30, 2012		December 31, 2011		June 30, 2012		December 31, 2011
Forward contracts		Other liabilities	$	1,423	$	—	$	214	$	—
Forward contracts		Other assets	$	—	$	399	$	—	$	46