SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Allowance for doubtful accounts:
Changes during the period
Balance at Beginning of Period	$ 20,282		$ 19,708		$ 21,268
Additions, Charged to Expense	34,144		28,164		19,667
Additions, Translation Adjustments	28		68		(695)
Deductions	(29,341)	[1]	(27,658)	[1]	(20,532)	[1]
Balance at End of Period	25,113		20,282		19,708
Tax valuation allowances:
Changes during the period
Balance at Beginning of Period	186,710		185,807		167,812
Additions, Charged to Expense	35,805		(2,528)		27,473
Additions, Translation Adjustments	3,930		3,431		(9,478)
Deductions	0		0		0
Balance at End of Period	$ 226,445		$ 186,710		$ 185,807

[1] Amounts written off, net of recoveries.