Description of Business and Summary of Significant Accounting Policies (Tables)
 6 Months Ended
Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Cumulative Catch-Up Adjustments
Cumulative catch-up adjustments for the three and six months ended June 30, 2017 and July 1, 2016 are presented in the following table:
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
July 1,
 
June 30,
 
July 1,
(In thousands)
 
2017
 
2016
 
2017
 
2016
Favorable adjustments
 
$
4,783

 
$
2,712

 
$
8,325

 
$
6,864

Unfavorable adjustments
 
(2,584
)
 
(2,454
)
 
(3,407
)
 
(3,834
)
Net favorable adjustments
 
$
2,199

 
$
258

 
$
4,918

 
$
3,030