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Summary of Significant Accounting Policies - Additional information (Detail) |  | 12 Months Ended |
--- | --- | --- | ---
Sep. 29, 2016 Facility | Mar. 30, 2019 USD ($) Facility Center shares | Mar. 31, 2018 USD ($) | Apr. 01, 2017 USD ($) Facility Center | Jan. 05, 2018 shares
Significant Accounting Policies [Line Items] |  |  |  |  |
Common stock, shares issued | shares |  | 56,657,000 |  |  |
Impairment of development inventory |  |  | $ 1,200,000 |  |
Development inventory, net |  | $ 0 | 0 | $ 1,200,000 |
Allowance for doubtful accounts |  | 600,000 | 200,000 |  |
Depreciation expense, including amortization of assets under capital lease |  | $ 11,300,000 | 7,800,000 | 6,800,000 |
Number of idle manufacturing facilities | Facility |  | 5 |  |  |
Number of idle retail sales centers | Center |  | 2 |  |  |
Net book value of property, plant and equipment |  | $ 108,587,000 | 67,960,000 |  |
Proceeds from disposal of property, plant and equipment |  | 56,000 | 551,000 | 5,053,000 |
Net gain on sale of property, plant and equipment |  | 37,000 | $ 122,000 | 985,000 |
Asset held for sale |  | $ 2,100,000 |  |  |
Amortization period for useful lives of intangible assets |  | 8 years | 5 years 4 months 24 days |  |
Reclassified net of accumulated other comprehensive income to net income |  |  |  | $ 7,600,000 |
Tax effect for comprehensive income |  | $ 0 | $ 0 |  |
Innovative Building Systems LLC [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of manufacturing facilities | Facility | 5 |  |  |  |
Number of idle manufacturing facilities acquired | Facility |  |  |  | 3 |
Number of idle retail sales centers acquired | Center |  |  |  | 2 |
Minimum [Member] | ASC 842 [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Operating lease, right-of-use asset |  | 12,000,000 |  |  |
Operating lease, liability |  | $ 12,000,000 |  |  |
Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Amortization period for useful lives of intangible assets |  | 10 years |  |  |
Maximum [Member] | ASC 842 [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Operating lease, right-of-use asset |  | $ 15,000,000 |  |  |
Operating lease, liability |  | $ 15,000,000 |  |  |
Land and Improvements [Member] | Minimum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property, plant and equipment |  | 3 years |  |  |
Land and Improvements [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property, plant and equipment |  | 10 years |  |  |
Building and Improvements [Member] | Minimum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property, plant and equipment |  | 8 years |  |  |
Building and Improvements [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property, plant and equipment |  | 25 years |  |  |
Machinery and Equipment [Member] | Minimum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property, plant and equipment |  | 3 years |  |  |
Machinery and Equipment [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property, plant and equipment |  | 8 years |  |  |
Vehicles [Member] | Minimum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property, plant and equipment |  | 3 years |  |  |
Vehicles [Member] | Maximum [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of property, plant and equipment |  | 8 years |  |  |
Idle Manufacturing Facilities and Idle Retail Sales Centers [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Net book value of property, plant and equipment |  | $ 9,600,000 |  |  |
Idle Manufacturing Facilities and Idle Retail Sales Centers [Member] | Innovative Building Systems LLC [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Net book value of property, plant and equipment |  |  |  | $ 8,600,000 |
Idle Manufacturing Facilities [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of manufacturing facilities sold | Facility |  |  |  | 4 |
Proceeds from disposal of property, plant and equipment |  |  |  | $ 5,000,000 |
Net gain on sale of property, plant and equipment |  |  |  | 900,000 |
Selling, General and Administrative Expenses [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Total advertising expense |  | $ 1,500,000 | $ 1,000,000 | $ 1,000,000 |
U.S [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of manufacturing facilities | Facility |  | 31 |  |  |
Number of sales centers | Center |  | 21 |  |  |
Canada [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of manufacturing facilities | Facility |  | 5 |  |  |
Indiana Corporation [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Ownership percentage |  |  |  |  | 15.50%
Consolidated Joint Venture [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Equity interest in consolidated joint venture |  | 90.00% |  |  |
Champion Enterprises Holdings, LLC [Member] |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Common stock, shares issued | shares |  |  |  |  | 47,752,008
Ownership percentage |  |  |  |  | 84.50%

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