Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended	9 Months Ended
	Dec. 04, 2015	Nov. 20, 2015	Oct. 22, 2015	Dec. 31, 2015	Sep. 30, 2015	Sep. 30, 2014
Subsequent Event [Line Items]
Gain (Loss) on Disposition of Assets				$ 20,200	$ 0	$ 4,129
Dividend declared
Subsequent Event [Line Items]
Quarterly dividend, date declared			Oct. 22, 2015
Common Stock, Dividends, Per Share, Declared			$ 0.11
Quarterly dividend, date to be paid	Dec. 04, 2015
Quarterly dividend, date of record		Nov. 20, 2015
Quarterly dividend, amount declared	$ 15,200