Revenue from Contracts with Customers (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Dec. 31, 2022	Jan. 01, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 500,603	$ 431,714	$ 1,666,333	$ 1,121,679
Factory-built housing
Disaggregation of Revenue [Line Items]
Revenues	481,193	413,590	1,613,392	1,067,967
Factory-built housing | U.S. Housing and Urban Development code homes
Disaggregation of Revenue [Line Items]
Revenues	398,859	357,453	1,402,805	905,790
Factory-built housing | Modular homes
Disaggregation of Revenue [Line Items]
Revenues	36,498	30,451	108,072	88,454
Factory-built housing | Park Model RVs
Disaggregation of Revenue [Line Items]
Revenues	20,102	10,709	44,359	30,108
Factory-built housing | Factory-built housing, Other
Disaggregation of Revenue [Line Items]
Revenues	25,734	14,977	58,156	43,615
Financial Services
Disaggregation of Revenue [Line Items]
Revenues	19,410	18,124	52,941	53,712
Financial Services | Insurance Agency Commissions
Disaggregation of Revenue [Line Items]
Revenues	887	1,304	3,313	3,027
Financial Services | Financial services, All other sources
Disaggregation of Revenue [Line Items]
Revenues	$ 18,523	$ 16,820	$ 49,628	$ 50,685