Changes in Stockholders' Equity (Details) (USD $) In Thousands, unless otherwise specified					3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Common Stock [Member]	Dec. 31, 2013 Common Stock [Member]	Mar. 31, 2014 Additional Paid-In Capital [Member]	Mar. 31, 2014 Accumulated Other Comprehensive Income/(Loss) [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, December 31, 2013 (in shares)			0	0
Balance, December 31, 2013	$ 618,357	$ 547,362	$ 0	$ 0	$ 686,577	$ (799)
Unrealized loss on available for sale securities, net of tax						(6)
Unrealized loss on cash flow hedges, net of tax						(1,212)
Compensatory arrangements					942	0
Capital contribution from Holdings					110,000
Other					0	0
Balance, March 31, 2014 (in shares)			0	0
Balance, March 31, 2014	$ 618,357	$ 547,362	$ 0	$ 0	$ 797,519	$ (1,382)