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Parent Corporation Statements of Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Revenues: |  |  |
Net investment income earned | $ 326,589 | $ 227,107 | $ 222,543
Total revenues | 3,379,164 | 2,922,274 | 2,846,491
Expenses: |  |  |
Interest expense | 29,165 | 30,839 | 33,668
Total expenses | 2,873,854 | 2,619,286 | 2,510,101
Income before federal income tax | 505,310 | 302,988 | 336,390
Federal income tax (benefit) expense: |  |  |
Current | 87,335 | 60,059 | 60,640
Deferred | 14,138 | (3,426) | 4,127
Total federal income tax benefit | 101,473 | 56,633 | 64,767
Net income | 403,837 | 246,355 | 271,623
Preferred stock dividends | 9,353 | 0 | 0
Net Income available to common stockholders | 394,484 | 246,355 | 271,623
Parent Company [Member] |  |  |
Revenues: |  |  |
Dividends from subsidaries | 140,018 | 104,992 | 110,004
Net investment income earned | 15,454 | 7,579 | 7,301
Net realized and unrealized investment gains | 1,898 | 1,756 | 207
Total revenues | 157,370 | 114,327 | 117,512
Expenses: |  |  |
Interest expense | 28,988 | 29,220 | 33,426
Other expenses | 28,305 | 25,412 | 30,900
Total expenses | 57,293 | 54,632 | 64,326
Income before federal income tax | 100,077 | 59,695 | 53,186
Federal income tax (benefit) expense: |  |  |
Current | (6,552) | (10,987) | (16,080)
Deferred | 12 | 473 | 3,606
Total federal income tax benefit | (6,540) | (10,514) | (12,474)
Net income before equity in undistributed income of subsidiaries | 106,617 | 70,209 | 65,660
Equity In Undistributed Income Of Continuing Subsidiaries, Net Of Tax | 297,220 | 176,146 | 205,963
Net income | 403,837 | 246,355 | 271,623
Preferred stock dividends | 9,353 | 0 | 0
Net Income available to common stockholders | $ 394,484 | $ 246,355 | $ 271,623

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