Share Repurchase (Narrative) (Details) - USD ($)	7 Months Ended	8 Months Ended	9 Months Ended
	Sep. 30, 2016	Nov. 01, 2016	Sep. 30, 2016	Sep. 30, 2015	Mar. 15, 2016
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount					$ 10,000,000.0
Treasury stock, shares acquired (shares)	232,284
Purchase of treasury shares	$ 2,400,000		$ 2,375,000	$ 4,944,000
Stock repurchase program, remaining authorized repurchase amount	$ 7,600,000		$ 7,600,000
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Treasury stock, shares acquired (shares)		264,058
Purchase of treasury shares		$ 2,700,000
Stock repurchase program, remaining authorized repurchase amount		$ 7,300,000