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SEGMENT INFORMATION - Reconciliation of Reportable Segment Financial Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Net Income (Loss): |  |  |  |
Income before income taxes | $ 112,735 | $ 24,208 | $ 312,557 | $ 50,809
Income tax | 37,057 | (4,405) | 105,171 | (1,326)
Net income | 75,678 | 28,613 | 207,386 | 52,135
Segment Reconciling Items [Member] |  |  |  |
Net Income (Loss): |  |  |  |
Total income for segments and other | 155,667 | 69,436 | 464,794 | 158,969
Other operating expenses | 42,932 | 45,228 | 152,237 | 108,160
Income before income taxes | 112,735 | 24,208 | 312,557 | 50,809
Income tax | 37,057 | (4,405) | 105,171 | (1,326)
Net income | 75,678 | 28,613 | 207,386 | 52,135
Average assets: |  |  |  |
Total average earning assets for segments | 20,047,397 | 14,758,254 | 19,014,027 | 13,079,032
Average non-earning assets | 1,024,385 | 1,047,401 | 1,105,223 | 975,744
Total consolidated average assets | $ 21,071,782 | $ 15,805,655 | $ 20,119,250 | $ 14,054,776

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