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Loans - Nonaccrual loans prior to Adoption of ASU 2016-13 (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Loans
Nonaccrual loans	$ 95,188	$ 33,141
Commercial loans | Construction and land development
Loans
Nonaccrual loans	2,421	1,193
Commercial loans | Commercial non-owner occupied
Loans
Nonaccrual loans	4,596	1,154
Commercial loans | Commercial non-owner occupied real estate
Loans
Nonaccrual loans	26,059	4,385
Commercial loans | Commercial and industrial
Loans
Nonaccrual loans	9,218	6,913
Commercial loans | Other income producing property
Loans
Nonaccrual loans	6,130	1,947
Consumer | Consumer Owner Occupied Loans
Loans
Nonaccrual loans	30,746	9,718
Consumer | Home equity loans
Loans
Nonaccrual loans	9,944	4,640
Consumer | Consumer
Loans
Nonaccrual loans	$ 6,074	3,191
Non-acquired loans
Loans
Nonaccrual loans		22,302
Non-acquired loans | Other income producing property
Loans
Nonaccrual loans		798
Non-acquired loans | Restructured loans
Loans
Nonaccrual loans		2,578
Non-acquired loans | Commercial loans | Construction and land development
Loans
Nonaccrual loans		363
Non-acquired loans | Commercial loans | Commercial non-owner occupied
Loans
Nonaccrual loans		732
Non-acquired loans | Commercial loans | Commercial non-owner occupied real estate
Loans
Nonaccrual loans		1,095
Non-acquired loans | Commercial loans | Commercial owner occupied real estate loan
Loans
Nonaccrual loans		3,482
Non-acquired loans | Commercial loans | Commercial and industrial
Loans
Nonaccrual loans		4,092
Non-acquired loans | Consumer | Consumer Owner Occupied Loans
Loans
Nonaccrual loans		7,202
Non-acquired loans | Consumer | Home equity loans
Loans
Nonaccrual loans		1,468
Non-acquired loans | Consumer | Real estate
Loans
Nonaccrual loans		8,670
Non-acquired loans | Consumer | Consumer
Loans
Nonaccrual loans		1,587
Acquired non-credit impaired loans
Loans
Nonaccrual loans		10,839
Acquired non-credit impaired loans | Commercial loans | Construction and land development
Loans
Nonaccrual loans		699
Acquired non-credit impaired loans | Commercial loans | Commercial non-owner occupied
Loans
Nonaccrual loans		393
Acquired non-credit impaired loans | Commercial loans | Commercial non-owner occupied real estate
Loans
Nonaccrual loans		1,092
Acquired non-credit impaired loans | Commercial loans | Commercial owner occupied real estate loan
Loans
Nonaccrual loans		903
Acquired non-credit impaired loans | Commercial loans | Commercial and industrial
Loans
Nonaccrual loans		722
Acquired non-credit impaired loans | Consumer | Consumer Owner Occupied Loans
Loans
Nonaccrual loans		2,350
Acquired non-credit impaired loans | Consumer | Home equity loans
Loans
Nonaccrual loans		3,067
Acquired non-credit impaired loans | Consumer | Real estate
Loans
Nonaccrual loans		5,417
Acquired non-credit impaired loans | Consumer | Other income producing property
Loans
Nonaccrual loans		1,101
Acquired non-credit impaired loans | Consumer | Consumer
Loans
Nonaccrual loans		$ 1,604

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