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Income Taxes - Reconciliation of Income Taxes Based on U.S. Federal Statutory Rate (Detail) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Disclosure [Abstract] |  |  |
U.S federal statutory income tax rate | 21.00% | 21.00% | 35.00%
Change in valuation allowance, exclusive of state | 1.20% | (0.90%) | (1.20%)
Foreign tax credits, exclusive of tax reform | (0.00%) | (0.00%) | 13.50%
State taxes, net of federal taxes, exclusive of tax reform | (8.00%) | 0.40% | 8.90%
Non-U.S. earnings taxed at different rates | 1.00% | 1.30% | 1.60%
Non-deductible mergers and acquisitions costs | 0.00% | (0.20%) | 0.00%
GILTI | (0.80%) | (0.50%) | 0.00%
Goodwill impairment | 0.00% | (14.10%) | 0.00%
Nondeductible asset loss | (1.30%) | (0.10%) | (0.80%)
Research and development tax credit | (3.10%) | (0.30%) | (0.30%)
Change in uncertain tax positions | 2.60% | 0.10% | 0.50%
Impact of tax reform: |  |  |
Toll charge, net of foreign tax credit | 0.00% | 0.60% | (11.30%)
Remeasurement of deferred taxes pursuant to tax reform | 0.00% | (0.90%) | 64.10%
Tax reform impact on divestiture of business segment | 0.00% | 0.00% | 33.20%
Impact of 2019 Treasury regulations | (11.50%) | 0.00% | 0.00%
Section 199 domestic production deduction | (0.00%) | (0.00%) | (0.70%)
Divestiture of business segment, exclusive of tax reform | 0.00% | (0.90%) | 13.30%
Return to provision | 1.30% | (0.80%) | 0.00%
Other adjustments, net | (2.30%) | (0.20%) | 1.30%
Effective tax rate | 6.30% | 5.10% | 132.10%

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