Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2016	2015	2016	2015
Weighted average shares outstanding - basic	82,742,070	85,247,467	83,357,449	85,645,760
Dilutive effect of share-based awards	69,301	—	32,375	—
Weighted average shares outstanding - diluted	82,811,371	85,247,467	83,389,824	85,645,760