Acquisitions Huntington Acquisition (Details) - USD ($) $ in Thousands		3 Months Ended
	Jun. 14, 2019	Mar. 31, 2020	Sep. 30, 2020	Sep. 30, 2019
June 14, 2019
Goodwill		$ 13,000
Fair value of liabilities assumed			$ 480,028	$ 725,764
Huntington National Bank
Purchase Accounting Adjustments
Cash and cash equivalents	$ 0
Loans	(1,552)
Premises and equipment, net	4,800
Core deposit intangibles (included in other intangible assets, net on the face of the consolidated balance sheets)	22,630
OREO (included in other assets on the face of the consolidated balance sheets)	(2,561)
Other assets	0
Deposits	156
Other liabilities	70
June 14, 2019
Cash and cash equivalents	551,250
Loans	116,346
Premises and equipment, net	22,430
Goodwill	7,286
Core deposit intangibles (included in other intangible assets, net on the face of the consolidated balance sheets)	22,630
OREO (included in other assets on the face of the consolidated balance sheets)	5,263
Other assets	559
Total assets	725,764
Deposits	725,173
Other liabilities	590
Fair value of liabilities assumed	$ 725,764