Stock-Based Compensation (Tables)

3 Months Ended

Mar. 29, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of stock-based compensation expense by line item on the Statement of Operations

The following table summarizes the consolidated stock-based compensation expense by line item in the Consolidated Statements of Operations:

	Three Months Ended
(In thousands)	March 29, 2015		March 30, 2014
Cost of Residential revenue	$	922	$	994
Cost of Commercial revenue	388		540
Cost of Power Plant revenue	1,256		2,022
Research and development	2,273		1,797
Sales, general and administrative	8,707		9,514
Total stock-based compensation expense	$	13,546	$	14,867

Summary of stock-based compensation expense by type of award

The following table summarizes the consolidated stock-based compensation expense by type of awards:

	Three Months Ended
(In thousands)	March 29, 2015			March 30, 2014
Restricted stock units	14,504			14,876
Change in stock-based compensation capitalized in inventory	(958		)	(9		)
Total stock-based compensation expense	$	13,546		$	14,867