Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Share-Based Compensation Expense Recorded In Income from Continuing Operations in Statements of Operations

The table below summarizes share-based compensation expense recorded in income from continuing operations in the consolidated statements of operations (in thousands):

	Three Months Ended				Nine Months Ended
	September 30, 2016		October 2, 2015		September 30, 2016		October 2, 2015
Selling, general and administrative	$	914	$	849	$	3,112	$	3,165
Research and development and engineering		18		42		82		122
Cost of revenue		56		70		191		207
Restructuring, acquisition and divestiture related costs		—		—		—		(321	)
Total share-based compensation expense	$	988	$	961	$	3,385	$	3,173

Estimated Fair Value of Stock Options Using the Black-Scholes Valuation Model

The fair value of stock options granted during the nine months ended September 30, 2016 was estimated as of the grant date using the Black-Scholes valuation model with the following assumptions:

	Nine Months Ended September 30, 2016
Expected option term in years (1)		6.0
Expected volatility (2)		33.8	%
Risk-free interest rate (3)		1.6	%
Expected annual dividend yield (4)		—

(1) The expected option term was calculated using the simplified method provided by Codification of Staff Accounting Bulletin Topic 14: “Share-Based Payment”.

(2) The expected volatility was determined based on the historical volatility of the Company’s common stock over the expected option term.

(3) Risk-free interest rate was based upon treasury instrument whose term was one year longer than the expected option term.

(4) The expected annual dividend yield is zero, as the Company does not have plans to issue dividends.

2010 Incentive Award Plan

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Restricted Stock Issued and Outstanding

The table below summarizes activities relating to RSUs and DSUs issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the nine months ended September 30, 2016:

	Shares (In thousands)			Weighted Average Grant Date Fair Value
Unvested at December 31, 2015		619		$	12.32
Granted		520		$	14.17
Vested		(362	)	$	12.02
Forfeited		(142	)	$	13.11
Unvested at September 30, 2016		635		$	13.83
Expected to vest as of September 30, 2016		573

Performance Stock Units Issued and Outstanding

The table below summarizes activities relating to PSUs issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the nine months ended September 30, 2016:

	Shares (In thousands)			Weighted Average Grant Date Fair Value
Unvested at December 31, 2015		—		$	—
Granted		46		$	14.13
Vested		—		$	—
Forfeited		(17	)	$	14.13
Unvested at September 30, 2016		29		$	14.13
Expected to vest as of September 30, 2016		29

Stock Options Issued and Outstanding

The table below summarizes activities relating to stock options issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the nine months ended September 30, 2016:

	Shares (In thousands)			Weighted Average Exercise Price
Outstanding as of December 31, 2015		—		$	—
Granted		193		$	14.13
Exercised		—		$	—
Forfeited or expired		(77	)	$	14.13
Outstanding as of September 30, 2016		116		$	14.13
Exercisable as of September 30, 2016		13		$	14.13
Expected to vest as of September 30, 2016		103