Share Buyback Program (Details) shares in Thousands	3 Months Ended
	Mar. 31, 2019 Program shares	Nov. 26, 2008 shares
Share Buyback Program (Textual) [Abstract]
Common stock available for repurchase (in shares) | shares	341	1,000
Number of other repurchase programs outstanding	0
Number of stock repurchase programs other expired	0