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Stock-Based Compensation
3 Months Ended
Mar. 29, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock-Based Compensation
STOCK-BASED COMPENSATION

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



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