Fair Value Measurements (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Contingent Consideration Liability
Level 3 Liabilities Measured on a Recurring Basis
Balance, beginning of period	$ (47,724)
Total realized/unrealized gains (losses):
Additions		(46,696)
Other (1)	(2,176)	(1,028)
Balance, end of period	(49,900)	(47,724)
FDIC Clawback Liability
Level 3 Liabilities Measured on a Recurring Basis
Balance, beginning of period	(9,970)	(8,103)
Total realized/unrealized gains (losses):
Included in earnings	(1,997)	(1,867)
Balance, end of period	$ (11,967)	$ (9,970)