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Income Taxes - Components of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Current: |  |  |  |  |  |  |  |  |  |  |
Federal |  |  |  |  |  |  |  |  | $ 60,764 | $ 76,966 | $ 64,006
State |  |  |  |  |  |  |  |  | 8,732 | 8,589 | 4,831
Current Income Tax Expense (Benefit), Total |  |  |  |  |  |  |  |  | 69,496 | 85,555 | 68,837
Deferred: |  |  |  |  |  |  |  |  |  |  |
Federal |  |  |  |  |  |  |  |  | (10,708) | (6,189) | 7,961
State |  |  |  |  |  |  |  |  | (799) | 843 | 891
Deferred Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  | (11,507) | (5,346) | 8,852
Tax expense recorded as an increase of paid-in capital |  |  |  |  |  |  |  |  |  |  | 9,921
Income Tax Expense (Benefit), Total | $ 18,263 | $ 8,720 | $ 13,960 | $ 17,046 | $ 23,320 | $ 21,266 | $ 15,485 | $ 20,138 | $ 57,989 | $ 80,209 | $ 87,610

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- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109245112&loc=d3e23524-113945 + Details
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