General form of registration statement for all companies including face-amount certificate companies

Property, Plant and Equipment - Summary of Components of Property Plant and Equipment Net (Details)

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Property, Plant and Equipment - Summary of Components of Property Plant and Equipment Net (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property Plant And Equipment [Line Items]      
Property plant and equipment, Gross $ 1,083,679 $ 817,135 $ 764,636
Accumulated depreciation and depletion (506,831) (464,178) (352,565)
Construction in progress 42,923 10,730 17,613
Property, plant, and equipment, net 619,771 363,687 429,684
Machinery and Equipment      
Property Plant And Equipment [Line Items]      
Property plant and equipment, Gross 1,018,221 760,829 738,312
Mining Property and Mine Development      
Property Plant And Equipment [Line Items]      
Property plant and equipment, Gross 35,491 34,809 4,809
Office Equipment Software and Other      
Property Plant And Equipment [Line Items]      
Property plant and equipment, Gross 13,876 5,550 4,820
Buildings and Leasehold Improvements      
Property Plant And Equipment [Line Items]      
Property plant and equipment, Gross $ 16,091 $ 15,947 $ 16,695