Leases
 9 Months Ended
Oct. 02, 2020
Leases [Abstract]  
Leases
Leases
    We determine whether an arrangement contains a lease at inception. We have operating leases for office space, apartments, vehicles, and machinery and equipment. Our operating leases have lease terms of less than one year to ten years.
    We do not separate lease components from non-lease components (e.g., common area maintenance, property taxes and insurance) but account for both components in a contract as a single lease component.
    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 
    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 
    Additional right-of-use assets of $1.5 million were recognized as non-cash asset additions that resulted from new operating lease liabilities during the first nine months of 2020.
    The weighted average remaining lease term and discount rate for our operating leases at October 2, 2020 were 5.2 years and 6.3%, respectively.
    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