Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions

The following assumptions were used to determine the grant date fair value of the equity component (February 19, 2019) and the period-end fair value of the liability component of the TSR Performance Share Awards:

	Grant Date			March 31, 2019
Fair value per performance share award	$	20.63		$11.95 - $24.11
Assumptions:
Stock price volatility	31.3		%	28.4%-31.8%
Risk free rate of return	2.46		%	2.21% - 2.41%