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Income Taxes - Difference Between the Company's Reported Provision for Income Taxes and the U.S. Federal Statutory Rate (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |  |
U.S. federal statutory tax rate, Amount |  | $ 77,069 | $ 75,715 | $ 69,867
State and local taxes, net of federal benefit, Amount | [1] | 9,505 | 6,911 | 2,737
Effect of cross-border tax laws |  | 665 | 0 | 0
Tax Credits, Amount |  | (4,369) | (4,941) | (3,652)
Nontaxable or nondeductible items, Amount |  | 4,400 | 3,036 | 2,372
Changes in unrecognized tax benefits, Amount | [1],[2] | 26,886 | 0 | 0
Provision for income taxes |  | $ 120,083 | $ 86,365 | $ 74,645
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
U.S. federal statutory tax rate, Percent |  | 21.00% | 21.00% | 21.00%
State and local taxes, net of federal benefit, Percent | [1] | 2.60% | 1.90% | 0.80%
Effect of cross-border tax laws, Percent |  | 0.20% | 0.00% | 0.00%
Tax Credits, Percent |  | (1.20%) | (1.40%) | (1.00%)
Nontaxable or nondeductible items, Percent |  | 1.20% | 0.90% | 0.70%
Changes in unrecognized tax benefits, Percent | [1],[2] | 7.30% | 0.00% | 0.00%
Effective tax rate, Percent |  | 32.70% | 24.00% | 22.40%
United Kingdom [Member] |  |  |  |
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |  |
Foreign Tax Effects, Amount |  | $ 4,273 | $ 4,298 | $ 1,935
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
Foreign Tax Effects, Percent |  | 1.20% | 1.20% | 0.50%
Other foreign Jurisdiction [Member] |  |  |  |
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] |  |  |  |
Foreign Tax Effects, Amount |  | $ 1,654 | $ 1,346 | $ 1,386
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |
Foreign Tax Effects, Percent |  | 0.40% | 0.40% | 0.40%
[1] | *State taxes in New York State and New York City for the years ended December 31, 2025, 2024 and 2023 made up the majority (greater than 50%) of the tax effect in this category
[2] | **The impact in the change in unrecognized tax benefits for the years ended December 31, 2024 and 2023 is immaterial

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.1.Q1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479360/740-10-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 + Details
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- Definition Amount of reported income tax expense (benefit) from difference to expected income tax expense (benefit) computed by applying statutory federal (national) income tax rate to pretax income (loss) from continuing operation, attributable to cross-border tax law. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A + Details
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