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Members' Equity - Common Units (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
shares
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Vote
shares
Dec. 31, 2020
USD ($)
shares
Mezzanine and Members' Equity        
Vote per common unit | Vote     1  
Option to purchase common unit exercised 2,928,000   3,483,000 105,000
Proceeds from option exercises | $ $ 470 $ 11 $ 748 $ 43
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 96,800,000   96,800  
Number of options available to issue for the purchase of common units 475,000   1,525,000