Inventory Impairment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2022	Dec. 31, 2022
Inventory Disclosure [Abstract]
Total losses		$ 8,200
Land Option Write Off	$ 10,200

The charge against earnings resulting from the aggregate write down of land, terminated options/purchase contracts and related pre acquisition costs, and real estate from their carrying value to their fair value.

No definition available.

Name:	mho_RealEstateRelatedImpairments
Namespace Prefix:	mho_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration