| Related Party Transactions (Detail) - Maximum - USD ($) $ in Millions | 3 Months Ended | ||
|---|---|---|---|
| Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019 | |
| Sales to related party | $ 0.1 | $ 0.1 | |
| Due from related party | $ 0.1 | $ 0.1 | |
| X | ||||||||||
| 
- Definition For an unclassified balance sheet, amount of receivables arising from transactions with related parties. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
 | 
| X | ||||||||||
| 
- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
 | 
| X | ||||||||||
| 
- Details 
 |