Stock-Based Compensation (Tables)

3 Months Ended

Jun. 30, 2018

Stock-Based Compensation [Abstract]

Fair Market Value of Stock-Based Compensation Awards

The fair value of stock-based compensation awards granted during the three months ended June 30, 2018 and 2017 were as follows:

	Three months ended June 30,
	2018				2017
	Shares		Fair Value Per Award		Shares		Fair Value Per Award
Stock options		0.2	$	7.81		0.2	$	7.30
Restricted stock awards		0.2	$	17.90		0.2	$	15.90
Performance stock awards		0.2	$	17.90		0.2	$	15.90

Assumptions Used in Determining Fair Value of Options

The Company used the following assumptions in determining fair value for stock options:

	Three months ended June 30,
	2018			2017
Expected life of awards in years		6.3			6.4
Risk-free interest rate		2.8	%		1.9	%
Expected volatility of the Company's stock		39.7	%		44.3	%
Expected dividend yield on the Company's stock		0.0	%		0.0	%

Unrecognized Compensation Cost Related to Non-Vested Stock-Based Compensation Awards

As of June 30, 2018, unrecognized compensation expense related to non-vested stock-based compensation awards, which will be amortized over the remaining service periods, was as follows:

	Unrecognized Compensation Expense		Weighted-Average Remaining Service Period in Years
Stock options	$	3.6		3.1
Restricted stock awards		8.4		3.1
Performance stock awards		6.8		2.1
Total	$	18.8		2.7