Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net revenue	$ 241,530	$ 200,507	$ 487,933	$ 407,323
Cost of sales	192,114	165,953	387,041	330,803
Gross profit	49,416	34,554	100,892	76,520
Selling, general and administrative expenses	30,035	26,153	59,248	52,458
Income from operations	19,381	8,401	41,644	24,062
Interest expense	(941)	(1,021)	(1,913)	(2,069)
Other income, net	1,077	1,119	3,922	2,157
Income before income taxes	19,517	8,499	43,653	24,150
Income tax expense	(3,941)	(2,317)	(8,386)	(6,215)
Net income	15,576	6,182	35,267	17,935
Comprehensive income:
Net income	15,576	6,182	35,267	17,935
Reclassification adjustment for net losses (gains) realized in income, before Tax	24	(383)	24	(459)
Reclassification adjustment for net losses (gains) realized in income, Tax	(5)	134	(5)	161
Net change in unrealized position of investments, before Tax	(57)	2,275	(51)	1,442
Net change in unrealized position of investments, Tax	12	(867)	11	(540)
Comprehensive income	$ 15,550	$ 7,341	$ 35,246	$ 18,539
Net income per share attributable to Cavco common stockholders:
Basic (usd per share)	$ 1.72	$ 0.69	$ 3.89	$ 1.99
Diluted (usd per share)	$ 1.67	$ 0.67	$ 3.80	$ 1.96
Weighted average shares outstanding:
Basic (in shares)	9,079,679	9,020,834	9,064,007	9,013,917
Diluted (in shares)	9,304,188	9,181,899	9,287,730	9,171,515