Consolidated Balance Sheets (Parenthetical) - USD ($) $ / shares in Thousands, $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale, Amortized Cost	$ 5,447,566	$ 5,898,041
Debt Securities, Held-to-maturity, Fair Value	$ 1,747,282	$ 2,122,606
Preferred Stock, No Par Value	$ 0	$ 0
Common Stock, No Par Value	$ 0	$ 0

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer.

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