Contingencies - Additional Information (Detail) - Mar. 31, 2018 € in Millions, $ in Millions |
USD ($) |
EUR (€) |
|---|---|---|
| Commitments And Contingencies Disclosure [Abstract] | ||
| Discontinued operations for compensatory damages and exemplary damages | $ 1.7 | |
| Accrued liabilities | $ 3.2 | € 2.6 |