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Mezzanine and Members' Equity - Common Units (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Vote
shares
Dec. 31, 2020
USD ($)
shares
Mar. 31, 2022
shares
Mar. 31, 2021
shares
Dec. 31, 2019
shares
Mezzanine and Members' Equity          
Vote per common unit | Vote 1        
Number of common units repurchased 15,000 55,000      
Original price for repurchase of units | $ $ 4 $ 22      
Premium for repurchase of units | $ $ 13 $ 27      
Number of common units reserved under the Company's equity incentive plan 96,800   96,800,000    
Number of options available to issue for the purchase of common units 1,525,000   475,000    
Common units subject to possible redemption 6,000,000 6,000,000 6,000,000 6,000,000 6,000,000