Stockholders' Equity

9 Months Ended

Sep. 27, 2015

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

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

	For the Nine Months Ended
	September 28, 2014			September 27, 2015
Stockholders’ equity at beginning of period	$	295.8		$	224.3
Comprehensive income (loss):
Net income (loss)	(75.8		)	23.8
Change in cumulative translation adjustment	(0.2		)	0.2
Total comprehensive income (loss)	(76.0		)	24.0
Exercise of stock options and warrants	(0.1		)	—
Stock-based compensation	7.6			5.8
Employee stock purchase plan and restricted stock units settled in cash	3.9			4.0
Restricted stock units traded for taxes	(0.2		)	(0.5		)
Stockholders’ equity at end of period	$	231.0		$	257.6

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

	September 28, 2014			September 27, 2015
Cumulative translation adjustment	$	(0.5	)	$	(0.5	)
Post retirement benefit reserve adjustment net of tax expense	(0.5		)	(1.0		)
Total accumulated other comprehensive loss	$	(1.0	)	$	(1.5	)

There were no reclassifications from other comprehensive loss to net income (loss) for the nine months ended September 28, 2014. There was a reclassification of $0.1 million for the nine months ended September 27, 2015 related to the sale of the Herley Entities.

Common stock issued by the Company for the nine months ended September 28, 2014 and September 27, 2015 was as follows (in millions):

	For the Nine Months Ended
	September 28, 2014	September 27, 2015
Shares outstanding at beginning of the period	57.1	57.8
Stock issued for employee stock purchase plan, stock options and restricted stock units exercised	0.7	1.3
Shares outstanding at end of the period	57.8	59.1