Description of Business and Summary of Significant Accounting Policies (Tables)
 9 Months Ended
Sep. 29, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Cumulative Catch-Up Adjustments
Cumulative catch-up adjustments for the three and nine months ended September 29, 2017 and September 30, 2016 are presented in the following table:
 
 
Three Months Ended
 
Nine Months Ended
 
 
September 29,
 
September 30,
 
September 29,
 
September 30,
(In thousands)
 
2017
 
2016
 
2017
 
2016
Favorable adjustments
 
$
5,779

 
$
2,374

 
$
14,104

 
$
9,238

Unfavorable adjustments
 
(2,111
)
 
(1,202
)
 
(5,518
)
 
(5,036
)
Net favorable adjustments
 
$
3,668

 
$
1,172

 
$
8,586

 
$
4,202