Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net revenue	$ 221,383	$ 202,310	$ 628,706	$ 575,799
Cost of sales	171,527	158,766	502,330	459,896
Gross profit	49,856	43,544	126,376	115,903
Selling, general and administrative expenses	26,045	26,003	78,503	76,119
Income from operations	23,811	17,541	47,873	39,784
Interest expense	(1,236)	(1,091)	(3,305)	(3,384)
Other income, net	1,094	829	3,251	2,407
Income before income taxes	23,669	17,279	47,819	38,807
Income tax expense	(2,242)	(4,996)	(8,457)	(11,740)
Net income	21,427	12,283	39,362	27,067
Comprehensive income:
Net income	21,427	12,283	39,362	27,067
Unrealized gain on available-for-sale securities, net of tax	315	253	919	1,077
Comprehensive income	$ 21,742	$ 12,536	$ 40,281	$ 28,144
Net income per share attributable to Cavco common stockholders:
Basic (usd per share)	$ 2.37	$ 1.37	$ 4.36	$ 3.02
Diluted (usd per share)	$ 2.33	$ 1.35	$ 4.28	$ 2.98
Weighted average shares outstanding:
Basic (in shares)	9,030,100	8,992,456	9,019,311	8,970,008
Diluted (in shares)	9,214,898	9,102,562	9,186,042	9,096,442