Stockholders' Equity (Tables)

9 Months Ended

Sep. 25, 2016

Equity [Abstract]

Summary of Changes in Stockholders' Equity

A summary of the changes in stockholders’ equity is provided below (in millions):

	For the Nine Months Ended
	September 25, 2016			September 27, 2015
Stockholders’ equity at beginning of period	$	254.2		$	224.3
Comprehensive loss:
Net income (loss)	(56.2		)	23.8
Change in cumulative translation adjustment	(0.2		)	0.2
Total comprehensive income (loss)	(56.4		)	24.0
Stock-based compensation	4.2			5.8
Issuance of common stock for employee stock purchase plan	2.6			4.0
Restricted stock units traded for taxes	(0.5		)	(0.5		)
Stockholders’ equity at end of period	$	204.1		$	257.6

Components of Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss are as follows (in millions):

	September 25, 2016			September 27, 2015
Cumulative translation adjustment	$	(0.8	)	$	(0.5	)
Post-retirement benefit reserve adjustment net of tax expense	(0.8		)	(1.0		)
Total accumulated other comprehensive loss	$	(1.6	)	$	(1.5	)

Rollforward of Common Stock Outstanding

Common stock issued by the Company for the nine months ended September 25, 2016 and September 27, 2015 was as follows (in millions):

	For the Nine Months Ended
	September 25, 2016	September 27, 2015
Shares outstanding at beginning of the period	59.1	57.8
Stock issued for employee stock purchase plan, stock options and restricted stock units exercised	1.4	1.3
Shares outstanding at end of the period	60.5	59.1