Subsequent Events (Details) - USD ($)		3 Months Ended		9 Months Ended
	Oct. 25, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Feb. 25, 2016
Subsequent Event [Line Items]
Dividends declared per common share (in dollars per Share)		$ 0.05	$ 0.050	$ 0.150	$ 0.100
Stock repurchase program, authorized amount						$ 25,000,000.0
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends declared per common share (in dollars per Share)	$ 0.075
Stock repurchase program, additional authorized amount	$ 15,000,000.0
Stock repurchase program, authorized amount	$ 40,000,000