Earnings Per Share Schedule of Earnings per Share, Basic and Diluted (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted Average Number of Shares Outstanding, Basic	88,896	84,180	78,180
Weighted Average Number Diluted Shares Outstanding Adjustment	158	161	2,314
Weighted Average Number of Shares Outstanding, Diluted	89,054	84,341	80,494