Commitments and License Rights - Additional Information (Details) $ in Thousands	Dec. 30, 2021 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Commitments to complete contracts in process value	$ 11,776

Represents the value of commitments in performing under a construction-type contract which are outside the ordinary course of business at the balance sheet date.

No definition available.

Name:	mcs_CommitmentsToCompleteContractsInProcessValue
Namespace Prefix:	mcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant