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Shareholders' Equity (Additional Information) (Details) $ / shares in Units, $ in Thousands | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Jan. 04, 2024 shares | Jan. 03, 2023 shares | Jan. 31, 2022 shares | Feb. 28, 2021 shares | Dec. 31, 2008 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |  |  |
number of years | 2 |  |  |  |  |  |  |
Dividends declared to shareholders | $ 24,500 | $ 23,700 | $ 22,100 |  |  |  |  |
Subordinated Debt | 44,331 | 44,331 |  |  |  |  |  |
Junior Subordinated Debt |  |  |  |  |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |  |  |
Subordinated Debt | 43,000 |  |  |  |  |  |  |
Value Of Trust Preferred Securities Included In Tier 1 Capital | 43,000 |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 43,000
Subsidiaries [Member] |  |  |  |  |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |  |  |
Dividends declared to shareholders | $ 22,500 | $ 31,700 | $ 41,700 |  |  |  |  |
Share Repurchase Program 2021 |  |  |  |  |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, shares of common stock approved for repurchase | shares |  |  |  |  |  |  | 750,000 |
Stock repurchased during period, shares | shares |  |  | 217,931 |  |  |  |  |
Shares repurchased, average cost per share | $ / shares |  |  | $ 46.25 |  |  |  |  |
Share Repurchase Program 2022 |  |  |  |  |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, shares of common stock approved for repurchase | shares |  |  |  |  | 750,000 | 750,000 |  |
Stock repurchased during period, shares | shares | 65,692 | 225,245 |  |  |  |  |  |
Shares repurchased, average cost per share | $ / shares | $ 30.44 | $ 45.46 |  |  |  |  |  |
Subsequent Event [Member] | Share Repurchase Program 2022 |  |  |  |  |  |  |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |  |  |  |  |  |  |
Stock repurchase program, shares of common stock approved for repurchase | shares |  |  |  | 750,000 |  |  |  |

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