Acquisitions Staunton Acquisition (Details) - USD ($) $ in Thousands			3 Months Ended
	Jun. 30, 2020	Feb. 14, 2020	Mar. 31, 2020	Sep. 30, 2020	Sep. 30, 2019
February 14, 2020
Goodwill			$ 13,000
Fair value of liabilities assumed				$ 480,028	$ 725,764
First Staunton Bancshares [Member]
Purchase Accounting Adjustments
Cash and cash equivalents		$ 0
Investment securities available for sale		(24)
Federal Home Loan Bank and Federal Reserve Bank stocks, at cost		0
Loans		(4,808)
Premises and equipment, net		(3,005)
Bank owned life insurance		9
Core deposit intangibles (included in other intangible assets, net on the face of the consolidated balance sheets)		7,379
OREO (included in other assets on the face of the consolidated balance sheets)		670
Other assets		4,193
Deposits		1,285
Other borrowings		61
Accrued expenses and other liabilities		179
February 14, 2020
Cash and cash equivalents		44,782
Investment securities available for sale		98,743
Federal Home Loan Bank and Federal Reserve Bank stocks, at cost		781
Loans		369,741
Premises and equipment, net		4,865
Bank owned life insurance		6,770
Goodwill	$ 82,000	13,414	$ 15,000
Core deposit intangibles (included in other intangible assets, net on the face of the consolidated balance sheets)		7,379
OREO (included in other assets on the face of the consolidated balance sheets)		762
Other assets		9,090
Total assets		556,328
Deposits		438,684
Other borrowings		34,613
Accrued expenses and other liabilities		6,730
Fair value of liabilities assumed		480,028
Total consideration paid		$ 76,300