Leases - Schedule of Information Reported in Consolidated Statement of Cash Flows (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Cash paid for amounts included in the measurement of lease liabilities | |||
| Operating cash flows from operating leases | $ 29.7 | $ 25.3 | $ 21.4 |
| Operating cash flows from finance leases | 1.0 | 1.2 | 1.6 |
| Financing cash flows from finance leases | 10.5 | 13.1 | 13.6 |
| Assets obtained in exchange for lease obligations: | |||
| Asset additions under adoption of accounting principal ASC 842 | 82.3 | ||
| Operating leases | 129.6 | 1.6 | 64.8 |
| Finance leases | $ 15.8 | $ 3.6 | 2.2 |
| ASU 2016-02 [Member] | |||
| Assets obtained in exchange for lease obligations: | |||
| Asset additions under adoption of accounting principal ASC 842 | $ 82.3 | ||