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Stockholders' Equity (Details) - USD ($)	3 Months Ended				6 Months Ended
Stockholders' Equity (Details) - USD ($)	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Aug. 01, 2015
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Amount of stock repurchase authorization							$ 100,000,000
Amount remaining under stock repurchase authorization		$ 100,000,000			$ 100,000,000
Dividends, Common Stock [Abstract]
Cash dividends declared per common share (in dollars per share)		$ 0.08	$ 0.0625	$ 0.0625	$ 0.16	$ 0.125
Subsequent Event [Member]
Dividends, Common Stock [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 0.08