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Stock-based Compensation - Phantom Stock Plan (Details) - Phantom Share Units (PSUs) [Member] - Phantom Stock Plan [Member]
 3 Months Ended
Mar. 31, 2022
$ / shares
shares
Outstanding, beginning balance (in shares) | shares 128,881
Outstanding, beginning balance (in dollars per share) | $ / shares $ 24.30
Granted (in shares) | shares 25,441
Granted (in dollars per share) | $ / shares $ 24.40
Distributions (in shares) | shares (635)
Distributions (in dollars per share) | $ / shares $ 24.78
Outstanding, ending balance (in shares) | shares 153,687
Outstanding, ending (in dollars per share) | $ / shares $ 22.35
Vested at September 30, 2021 (in shares) | shares 153,355
Vested at September 30, 2021 (in dollars per share) | $ / shares $ 22.35