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Condensed Parent Company Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items] |  |  |
Interest expense | $ (19,562) | $ (33,903) | $ (23,777)
Net income | 81,477 | 92,046 | 89,289
Parent Company |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Dividends from wholly-owned subsidiaries | 63,100 | 29,800 | 15,525
Earnings of wholly-owned subsidiaries, net of dividends | 20,899 | 65,555 | 77,050
Interest expense | (1,743) | (2,648) | (2,498)
All other income and expenses, net | (779) | (661) | (788)
Net income | $ 81,477 | $ 92,046 | $ 89,289

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