Net Income Per Common Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Net Income Per Common Share on Basic and Diluted Basis

The following table presents the calculation of net income per common share on a basic and diluted basis:

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
(in millions, except number of shares and per share amounts)	2017		2016		2017		2016
Net income	$	46.0	$	30.9	$	82.7	$	58.6
Weighted average common shares outstanding - basic		30,201,457		30,187,592		30,124,696		30,333,417
Effect of dilutive securities:
Equity compensation awards		846,624		622,564		870,476		637,772
Weighted average common shares outstanding - diluted		31,048,081		30,810,156		30,995,172		30,971,189
Net income per common share:
Basic	$	1.52	$	1.03	$	2.75	$	1.93
Diluted	$	1.48	$	1.00	$	2.67	$	1.89