Allowances For Doubtful Accounts (Tables)

12 Months Ended

Dec. 31, 2011

Allowances For Doubtful Accounts [Abstract]

Changes In The Allowance For Doubtful Accounts

	Year ended December 31,
	2011			2010		2009
Balance, beginning of year	$	20,357		$	10,066	$	11,768
Effect of FX movement on opening balance		(2,725	)		1,770		454
Change in provision for bad debts – reported in statement of operations		5,480			8,521		5,194
Charge-offs, net of recoveries		0			0		(7,350	)
Balance, end of year	$	23,112		$	20,357	$	10,066