Summary of Significant Accounting Policies (Details 8) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Other Expense (Income), Net:
Foreign currency transaction losses (gains), net	$ (1,131)	$ 15,624	$ 8,055	$ 14,381
Debt extinguishment expense (income), net	10,628		10,628	993
Other, net	(1,751)	1,007	(4,175)	(5,080)
Total other expense (income), net	$ 7,746	$ 16,631	$ 14,508	$ 10,294