Stock Repurchase Stock Repurchase (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Schedule of Repurchase Agreements [Table Text Block]

Fiscal Month	Total Number of Shares Purchased	Average Price Paid Per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs
July	232,550	$38.96	232,550	1,767,450