Earnings Per Share and Shareholders' Equity (Tables)

9 Months Ended

Sep. 29, 2018

Earnings Per Share [Abstract]

Schedule of earnings per share, basic and diluted

A reconciliation of the numerators and denominators used in the basic and diluted earnings per share ("EPS") calculation is as follows (in millions):

	Three Months Ended					Nine Months Ended
	September 29, 2018			September 30, 2017		September 29, 2018		September 30, 2017
Numerator:
Net income (loss)	$	(67.5	)	$	44.5	$	49.6	$	46.4
Denominator:
Weighted average shares outstanding for basic EPS	137.4			141.3		138.5		142.5
Dilutive effect of share-based awards*	—			0.4		0.5		0.3
Weighted average shares outstanding for diluted EPS	137.4			141.7		139.0		142.8
Anti-dilutive share-based awards excluded from computation of diluted EPS	—			1.0		1.2		0.8

* In the period of a net loss, diluted shares equal basic shares.

Schedule of share-based compensation, stock options, activity

We issued shares related to the exercise and vesting of share-based compensation as follows:

Three Months Ended		Nine Months Ended
September 29, 2018	September 30, 2017	September 29, 2018	September 30, 2017
90,000	99,800	217,000	146,100