Other Borrowings - Schedule of Company's Borrowings (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Overnight FHLB advances	$ 0	$ 239,100,000
Term FHLB advances	265,000,000	415,000,000
Other	0	4,000,000
Total other borrowings	$ 265,000,000	$ 658,100,000

Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant