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Financial Instruments - Summary of Changes in the Fair Value of IRLCs (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2021
USD ($)
Changes of fair value of interest rate lock commitments [Roll Forward]  
Balance, net—January 1, 2021 $ 1,771
Issuances of IRLCs 5,504
Settlements of IRLCs (5,139)
Net loss recognized in earnings (199)
Balance, net—March 31, 2021 1,937
Changes in fair value recognized during the period relating to assets still held at March 31, 2021 $ 166