Dividends (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	0 Months Ended			3 Months Ended			9 Months Ended
	Sep. 19, 2014	Jun. 20, 2014	Mar. 20, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2014
Dividends
Cash dividends paid	$ 700	$ 700	$ 700				$ 2,092
Cash dividend (in dollars per share)	$ 0.125	$ 0.125	$ 0.125
Dividends payable date of record				Aug. 29, 2014	May 30, 2014	Feb. 28, 2014