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Leases (Tables)
 12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Lease, Cost
Components of lease expense, included in either cost of revenues or general and administrative expense based on the use of the underlying asset, are as follows (inclusive of lease expense for leases not included on our consolidated balance sheet based on our accounting policy election to exclude leases with a term of 12 months or less):
Year Ended December 31,
202120202019
(In Thousands)
Operating lease expense$12,905 $13,946 $15,131 
Short-term lease expense22,055 17,125 36,348 
Total lease expense$34,960 $31,071 $51,479 
Supplemental cash flow information:
Year Ended December 31,
202120202019
(In Thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows - operating leases$12,962 $13,612 $15,064 
Right-of-use assets obtained in exchange for lease obligations:
Operating leases$3,168 $5,612 $3,944 

Supplemental balance sheet information:
December 31, 2021December 31, 2020
(In Thousands)
Operating leases:
Operating lease right-of-use assets$36,973 $43,448 
Operating lease liabilities, current portion$8,108 $8,795 
Operating lease liabilities$31,429 $37,569 
Total operating lease liabilities$39,537 $46,364 

Additional operating lease information:
December 31, 2021December 31, 2020
Weighted average remaining lease term:
Operating leases6.4 years6.8 years
Weighted average discount rate:
Operating leases9.67 %9.62 %
Future Minimum Lease Payments Table
Future minimum lease payments by year and in the aggregate, under non-cancelable operating leases with terms in excess of one year consist of the following at December 31, 2021:
 Operating Leases
 (In Thousands)
2022$11,507 
20239,241 
20247,412 
20255,721 
20265,635 
Thereafter13,867 
Total lease payments53,383 
Less imputed interest(13,846)
Total lease liabilities$39,537