Common Stock (Details) (USD $)	3 Months Ended								12 Months Ended			2 Months Ended	12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 11, 2014 Subsequent Event	Dec. 31, 2013 Subsequent Event
Class of Stock [Line Items]
Authorized shares to be repurchased	1,000,000								1,000,000
Shares previously purchased									42,600
Dividends declared (in dollars per share)	$ 0.07	$ 0.07	$ 0.07	$ 0.07	$ 0.06	$ 0.06	$ 0.06	$ 0.06	$ 0.24	$ 0.24	$ 0.24	$ 0.07
Dividends paid (in dollars per share)													$ 0.07