Interim Consolidated Financial Statements - Additional Information (Detail) - USD ($) $ in Thousands		6 Months Ended
Jan. 01, 2020	Jun. 30, 2020
Summary Of Significant Accounting Policy [Line Items]
Decrease in retained earnings		$ (157)
Topic 326 [Member]
Summary Of Significant Accounting Policy [Line Items]
Decrease in retained earnings	$ (200)

Represents the quantification of the effect of adopting the new accounting standard or change in accounting principle expected by the entity to have a significant effect on the entity's financial statements.

No definition available.

Name:	us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration