Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Costs and Expenses [Abstract]
Revenue	$ 1,131,791	$ 1,142,909	$ 3,270,476	$ 3,299,393
Land and housing	854,122	833,468	2,453,405	2,397,329
General and administrative	70,766	68,285	197,086	188,363
Selling	64,049	59,163	180,490	171,598
Other expense (income)	0	0	0	0
Interest income	(4,548)	(6,680)	(14,122)	(20,948)
Total costs and expenses	991,972	954,236	2,824,442	2,736,342
Income before income taxes	139,819	188,673	446,034	563,051
Provision for income taxes	33,329	43,224	107,064	132,795
Net income	$ 106,490	$ 145,449	$ 338,970	$ 430,256
Earnings per common share:
Basic	$ 4.01	$ 5.26	$ 12.60	$ 15.45
Diluted	$ 3.92	$ 5.10	$ 12.32	$ 14.99
Weighted Average Number of Shares Outstanding [Abstract]
Basic	26,544	27,644	26,895	27,857
Diluted	27,188	28,534	27,513	28,703
Production Related Impairments or Charges	$ 7,583		$ 7,583	$ 0

Amount of interest income, net of the cost of borrowed funds accounted for as interest expense.

No definition available.

Name:	mho_InterestIncomeNetOfInterestExpense
Namespace Prefix:	mho_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.