|**Accrued Liabilities (Tables)**                     | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|---------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|**Payables and Accruals [Abstract]**                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Schedule of accounts payable and accrued liabilities | Accrued liabilities atFebruary 27, 2016andNovember 28, 2015were as follows:February 27, 2016November 28, 2015Accrued salaries, wages and commissions$12,767$16,498Compensated absences8,0718,672Accrued insurance liabilities8,7749,928Warranties7,2767,870Customer deposits26,72625,036Other accrued liabilities30,87938,406Accrued liabilities$94,493$106,410                                                                                                                         
|                                                    
|                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                     | February 27, 2016                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Accrued salaries, wages and commissions              | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Compensated absences                                 | 8,071                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|Accrued insurance liabilities                        | 8,774                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|Warranties                                           | 7,276                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|Customer deposits                                    | 26,726                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Other accrued liabilities                            | 30,879                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|Accrued liabilities                                  | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Schedule of product warranty liability               | Changes in the Company’s warranty accrual are as follows:Three Months EndedFebruary 27, 2016February 28, 2015Warranty accrual at beginning of period$7,870$9,405Warranty accrual added through business acquisitions—100Accruals for warranties issued during the period582154Adjustments related to pre-existing warranties(599)(48)Settlements made during the period(396)(373)Other adjustments, including currency translation(181)(93)Warranty accrual at end of period$7,276$9,145
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|                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|                                                     | Three Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|                                                     | February 27, 2016                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Warranty accrual at beginning of period              | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Warranty accrual added through business acquisitions | —                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|Accruals for warranties issued during the period     | 582                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|Adjustments related to pre-existing warranties       | (599                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Settlements made during the period                   | (396                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Other adjustments, including currency translation    | (181                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|Warranty accrual at end of period                    | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

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