Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016
Earnings Per Share Computation
Net income attributable to Cavco common stockholders	$ 21,427	$ 12,283	$ 39,362	$ 27,067
Weighted average shares outstanding:
Basic (in shares)	9,030,100	8,992,456	9,019,311	8,970,008
Common stock equivalents - treasury stock method (in shares)	184,798	110,106	166,731	126,434
Diluted (in shares)	9,214,898	9,102,562	9,186,042	9,096,442
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
Anti-dilutive stock equivalents excluded from computation	4,941	18,455	5,549	9,385