Amount of investment in debt security measured at amortized cost, before allowance for credit losses.

No definition available.

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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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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount 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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Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

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Amount of investment in debt security measured at amortized cost (held-to-maturity).

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Securities - Securities Available-for-sale and Held-to-maturity by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Securities held-to-maturity, amortized cost, due after ten years	$ 50,830
Securities held-to-maturity, fair value, due after ten years	53,598
Securities held-to-maturity, amortized cost	58,734
Securities held-to-maturity, allowance for credit losses	(844)	$ (915)	$ (907)	$ (402)	$ (402)	$ (340)
Securities held-to-maturity, amortized cost	57,890		57,832
Securities held-to-maturity, fair value	62,446		63,529
Securities available for sale, amortized cost, due after one years through five years	30,000
Securities available for sale, fair value, due after one years through five years	30,242
Securities available for sale, amortized cost, due after five years through ten years	159,551
Securities available for sale, fair value, due after five years through ten years	159,243
Securities available for sale, amortized cost, due after ten years	22,718
Securities available for sale, fair value, due after ten years	22,714
Securities available for sale, amortized cost, total other securities	820,738		646,112
Securities available for sale, fair value, total other securities	821,445		647,974
US States and Political Subdivisions Debt Securities [Member]
Securities held-to-maturity, amortized cost	50,830		50,825
Securities held-to-maturity, fair value	53,598		54,538
Total Other Securities [Member]
Securities held-to-maturity, amortized cost	50,830
Securities held-to-maturity, fair value	53,598
Securities available for sale, amortized cost, total other securities	212,269
Securities available for sale, fair value, total other securities	212,199
Collateralized Mortgage Backed Securities [Member]
Securities held-to-maturity, amortized cost	7,904		7,914
Securities held-to-maturity, amortized cost	7,904		7,914
Securities held-to-maturity, fair value	8,848		8,991
Securities available for sale, amortized cost, total other securities	595,884		395,101
Securities available for sale, fair value, total other securities	596,661		404,460
Mutual Fund Debt Securities [Member]
Securities available for sale, amortized cost, total other securities	12,585		12,703
Securities available for sale, fair value, total other securities	$ 12,585		$ 12,703