Long-Term Borrowings	6 Months Ended
Jun. 30, 2021
Debt Disclosure [Abstract]
Long-Term Borrowings	Long-Term BorrowingsOn March 30, 2021, pursuant to a cash tender offer, the Corporation purchased $75.0 million and $60.0 million of its subordinated notes which mature on November 15, 2024 and its senior notes which mature on March 16, 2022, respectively. The subordinated notes carry a fixed rate of 4.50% and an effective rate of 4.87% and the senior notes carry a fixed rate of 3.60% and an effective rate of 3.95%. The Corporation incurred $11.3 million in debt extinguishment costs and expensed $841,000 of unamortized discount costs. In addition, during the first quarter of 2021, the Corporation prepaid $536.0 million of long-term FHLB advances and incurred $20.9 million in prepayment penalties.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI http://asc.fasb.org/topic&trid=2208564

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