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Business Combinations and Divestitures - Summary of Assets Held for Sale and Consideration Received and Gain on Sale (Details) - USD ($) $ in Thousands		12 Months Ended
	Apr. 20, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Carrying amount of liabilities in the disposal group:
Gain on sale of division, net of transaction costs		$ 0	$ 9,758	$ 0
Triumph Premium Finance
Carrying amount of assets in the disposal group:
Loans	$ 84,504
Premises and equipment, net	45
Other assets	11
Carrying amount of assets in disposal group	84,560
Carrying amount of liabilities in the disposal group:
Other liabilities	479
Total carrying amount	84,081
Total consideration received	94,531
Gain on sale of division	10,450
Transaction costs	692
Gain on sale of division, net of transaction costs	$ 9,758

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