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Segment Reporting - Reconciliation of Net Income To Adjusted Segment Earnings before Interest, Taxes, Depreciation and Amortization (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net income | $ 29,061 | $ 60,422 | $ 64,598 | $ 62,645 | $ 23,724 | $ 44,333 | $ 43,609 | $ 38,945 | $ 216,726 | $ 150,611 | $ 107,962
Income tax provision (benefit) | 10,624 | 19,857 | 21,313 | 19,930 | 7,834 | 19,964 | 14,113 | 15,270 | 71,724 | 57,181 | (20,857)
Interest income and other | 3,680 | (2,973) | (2,609) | (159) | (2,903) | (1,400) | (2,474) | 1,800 | (2,061) | (4,977) | (3,752)
Interest expense | $ 4,835 | $ 4,832 | $ 4,793 | $ 4,746 | 7,076 | 7,246 | 6,583 | 6,244 | 19,206 | 27,149 | 25,358
Gain on sale of business |  |  |  |  | 0 | (13,031) | 0 | 0 | 0 | (13,031) | 0
Loss on early extinguishment of debt |  |  |  |  | $ 9,072 | $ 0 | $ 0 | $ 0 | 0 | 9,072 | 0
Unallocated corporate expenses |  |  |  |  |  |  |  |  | 98,398 | 96,595 | 83,140
Segment depreciation expense |  |  |  |  |  |  |  |  | 27,369 | 27,979 | 27,112
Amortization of intangible assets |  |  |  |  |  |  |  |  | 8,152 | 8,162 | 10,563
Segment special charges |  |  |  |  |  |  |  |  | 0 | 0 | 37,207
Remeasurement of acquisition-related contingent consideration |  |  |  |  |  |  |  |  | 0 | 0 | 702
Adjusted Segment EBITDA |  |  |  |  |  |  |  |  | $ 439,514 | $ 358,741 | $ 267,435

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- Definition Used as a reconciling item from Total Adjusted Segment EBITDA to Income before tax provision, the charge against earnings in the period, comprised of costs associated with non-recurring activities related to our global branding strategy and other strategic branding decisions, a realignment of our workforce and consolidation of office locations. + References No definition available. + Details
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