CONSOLIDATED STATEMENTS OF COMPREHENSIVE I (L) (Parenthetical) (USD $) In Thousands, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2010
Statement of Other Comprehensive Income [Abstract]
Unrealized holding gains (losses) on securities, tax	$ 125	$ 0	$ 0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax		0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	0		31,885
Unrealized loss on Euro-denominated debt, tax	(8,005)	0	12,656
Other Comprehensive Income Other, Tax	$ (1,127)	$ 0	$ 0