Stockholders' Equity (Details) - USD ($)	3 Months Ended				9 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Sep. 30, 2015	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Aug. 01, 2016	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	$ 0.24	$ 0.1875
Subsequent Event [Member]
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Amount of stock repurchase authorization							$ 100,000,000
Dividends, Common Stock [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 0.08