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Reclassifications from Accumulated Other Comprehensive Income (Loss) to Consolidated Statement of Income (Detail) - USD ($) $ in Thousands | 4 Months Ended | 5 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 31, 2017 | Dec. 31, 2017 | Dec. 31, 2019 | Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Interest income and other, net | $ 2,384 | $ 2,771 | $ 6,598 | $ 11,294
Interest and other debt costs, net | (11,179) | (13,009) | (29,068) | (30,439)
Loss before income taxes | (1,648,143) | (36,687) | $ (113,495) | (153,519)
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Loss before income taxes | 106 | 169 |  | (1,132)
Reclassification out of Accumulated Other Comprehensive Income | Realized Gains on Available for Sale Securities |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Interest and other debt costs, net | $ 106 | $ 169 |  | 404
Reclassification out of Accumulated Other Comprehensive Income | Retiree Medical Plan |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Interest income and other, net |  |  |  | $ (1,536)

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