Commitments and Contingencies - Additional Information (Detail)	4 Months Ended
Apr. 18, 2020 Employer
Loss Contingencies [Line Items]
Critical and declining zone fund status	Less than 65 percent
Number of employers contributing to plan	1
Minimum [Member]
Loss Contingencies [Line Items]
Projected insolvent period based on active to inactive participants ratio	15 years
Maximum [Member]
Loss Contingencies [Line Items]
Status or critical and declining zone plans	65.00%
Projected insolvent period based on active to inactive participants ratio	20 years

Indicate whether the multiemployer plan is less than 65 percent funded, between 65 and less than 80 percent funded, or at least 80 percent funded. The acceptable values are: (1) "less than 65 percent", (2) "between 65 and less than 80 percent", (3) "at least 80 percent", and (4) "NA". A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

Name:	us-gaap_MultiemployerPlansFundedStatus
Namespace Prefix:	us-gaap_
Data Type:	us-types:fundedStatusItemType
Balance Type:	na
Period Type:	duration