Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Costs and Expenses [Abstract]
Revenue	$ 1,162,592	$ 1,109,781	$ 2,138,685	$ 2,156,484
Land and housing	875,973	800,501	1,599,283	1,563,861
General and administrative	67,247	63,994	126,320	120,078
Selling	63,655	58,495	116,441	112,435
Other expense (income)	0	0	0	0
Interest income	(4,377)	(7,348)	(9,574)	(14,268)
Total costs and expenses	1,002,498	915,642	1,832,470	1,782,106
Income before income taxes	160,094	194,139	306,215	374,378
Provision for income taxes	38,851	47,393	73,735	89,571
Net income	$ 121,243	$ 146,746	$ 232,480	$ 284,807
Earnings per common share:
Basic	$ 4.52	$ 5.26	$ 8.59	$ 10.18
Diluted	$ 4.42	$ 5.12	$ 8.40	$ 9.90
Weighted Average Number of Shares Outstanding [Abstract]
Basic	26,836	27,878	27,074	27,965
Diluted	27,406	28,668	27,673	28,777

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.