Segment Reporting - Total Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Total assets	$ 5,251,740	$ 5,170,642
Homebuilding assets
Segment Reporting Information [Line Items]
Total assets	4,683,592	4,679,791
Financial services assets
Segment Reporting Information [Line Items]
Total assets	568,148	490,851
Operating Segments \| Homebuilding assets \| West
Segment Reporting Information [Line Items]
Total assets	2,422,792	2,261,391
Operating Segments \| Homebuilding assets \| Mountain
Segment Reporting Information [Line Items]
Total assets	1,106,785	1,055,134
Operating Segments \| Homebuilding assets \| East
Segment Reporting Information [Line Items]
Total assets	720,209	593,167
Operating Segments \| Financial services assets \| Mortgage operations
Segment Reporting Information [Line Items]
Total assets	335,114	260,899
Operating Segments \| Financial services assets \| Other
Segment Reporting Information [Line Items]
Total assets	233,034	229,952
Corporate \| Homebuilding assets
Segment Reporting Information [Line Items]
Total assets	$ 433,806	$ 770,099

M.D.C. HOLDINGS, INC. 10-Q