Related Parties - Related Party Transactions in Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Related Party Transactions [Abstract]
Leasing revenue from related parties	$ 212	$ 106
Consulting expense to related party	(138)	(1,901)
Total related party expense, net	$ 74	$ (1,795)

Related Party Transaction, Operating Lease, Lease Income

No definition available.

Name:	wsc_RelatedPartyTransactionOperatingLeaseLeaseIncome
Namespace Prefix:	wsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration