Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2019 Facility	Mar. 31, 2018 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of facilities for manufacture and distribution of products \| Facility	4
Proceeds from the sale of discontinued operations being held in a related indemnity escrow account \| $		$ 2,730
Tax benefit recognized	Greater than 50%

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

Name:	us-gaap_ProceedsFromDivestitureOfBusinesses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration