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Restructuring And Liability Management (Tables)
12 Months Ended
Dec. 31, 2020
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs
For the Year Ended December 31,
20202019
(in thousands)
Reduction in workforce$1,460 $4,611 
Liability management29,387 — 
Total restructuring and liability management expenses$30,847 $4,611