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Business Combination - Skyline Corporation Transaction - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Mar. 28, 2020
Dec. 28, 2019
Sep. 28, 2019
Jun. 29, 2019
Mar. 30, 2019
Dec. 29, 2018
Sep. 29, 2018
Jun. 30, 2018
Mar. 28, 2020
Mar. 30, 2019
Mar. 31, 2018
Jun. 01, 2018
Business Acquisition [Line Items]                        
Stock based compensation expenses related to former Skyline employees                 $ 8,300,000 $ 102,000,000.0 $ 600,000  
Common stock closing price                       $ 33.39
Estimated weighted average useful lives                 10 years      
Impairment loss                 $ 550,000 0 0  
Proceeds from sale of property   $ 1,100,000             196,000 56,000 551,000  
Deferred tax assets, net $ 27,300,000               27,300,000      
Deferred tax liabilities 20,300,000               20,300,000      
Net sales 301,145,000 $ 342,239,000 $ 354,458,000 $ 371,888,000 $ 327,675,000 $ 354,671,000 $ 355,436,000 $ 322,261,000 1,369,730,000 1,360,043,000 1,064,722,000  
Capital distribution to members                 65,300,000      
Retained Earnings [Member]                        
Business Acquisition [Line Items]                        
Capital distribution to members                 22,500,000      
Members' Contributed Capital [Member]                        
Business Acquisition [Line Items]                        
Capital distribution to members                 42,800,000      
Selling, General and Administrative Expenses [Member]                        
Business Acquisition [Line Items]                        
Impairment loss                 600,000      
Skyco, LLC [Member] | Other Expense [Member]                        
Business Acquisition [Line Items]                        
Business acquisition-exchanged transaction-related costs                 0 6,900,000 $ 7,200,000  
Skyco, LLC [Member] | Selling, General and Administrative Expenses [Member]                        
Business Acquisition [Line Items]                        
Stock based compensation expenses related to former Skyline employees                   6,000,000.0    
Skyline Corporation [Member]                        
Business Acquisition [Line Items]                        
Deferred tax assets, net                       $ 7,034,000
Net sales                   218,800,000    
Skyline Corporation [Member] | Assets Classified as Held For Sale [Member]                        
Business Acquisition [Line Items]                        
Property classified as other current assets         $ 2,100,000         $ 2,100,000    
Skyline Corporation [Member] | Level 3 Fair Value Estimates [Member]                        
Business Acquisition [Line Items]                        
Property, plant and equipment, fair value 40,200,000               40,200,000      
Intangible assets, fair value $ 52,100,000               $ 52,100,000      
Impairment loss       $ 1,000,000.0