Shareholders' Equity (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity [Abstract]
Cash dividend per share	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 1	$ 0.25	$ 0
Dividend paid						$ 21,352	$ 5,338	$ 0
Common Stock, Dividends, Per Share, Cash Paid	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25