Leases (Tables)
 9 Months Ended
Oct. 02, 2020
Leases [Abstract]  
Components of lease expense The components of lease expense are as follows:
Three Months EndedNine Months Ended
(In thousands)October 2, 2020September 27, 2019October 2, 2020September 27, 2019
Operating lease expense$1,349 $3,827 $5,621 $10,890 
Variable lease expense191 196 546 594 
Short-term lease expense14,323 12,436 40,483 35,055 
Total lease expense$15,863 $16,459 $46,650 $46,539 
Balance sheet information related to leases Supplemental balance sheet information related to our operating leases is as follows:
(In thousands)October 2, 2020December 31, 2019
Right-of-use assets$9,970 $14,654 
Current lease liabilities (recorded in other accrued liabilities)$3,449 $5,743 
Long-term lease liabilities (recorded in other non-current liabilities)7,553 9,811 
Total operating lease liabilities$11,002 $15,554 
Maturity of lease liabilities Maturities of lease liabilities at October 2, 2020 were as follows:
(In thousands)Payments due
2020 (excluding the nine months ended October 2, 2020)$4,014 
20212,002 
20221,720 
20231,483 
20241,226 
2025 and beyond2,843 
Total lease payments13,288 
Less: Imputed interest(2,286)
Total operating lease liabilities$11,002