XML 104 R67.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Term Loan and Line of Credit (Narrative) (Details) - USD ($)
12 Months Ended
Nov. 30, 2019
Nov. 30, 2018
Nov. 30, 2017
Apr. 30, 2019
Nov. 20, 2017
Line of Credit Facility [Line Items]          
Due in next 12 months $ 11,287,000        
Credit Agreement          
Line of Credit Facility [Line Items]          
Additional borrowing capacity available       $ 185,000,000.0  
Interest rate of credit facilities 3.38%        
Debt, weighted average interest rate 3.90%        
Principal repayments, option one $ 1,900,000        
Principal repayments, option two 3,800,000        
Principal repayments, option three 5,600,000        
Principal repayments, option four 7,500,000        
Principal repayments, three payment schedules 9,400,000        
Debt issuance cost 1,600,000        
Unamortized debt issuance costs 1,200,000        
Amortization of debt issuance costs $ 500,000 $ 400,000 $ 400,000    
Percentage of capital stock of domestic subsidiaries 100.00%        
Percentage of capital stock of first-tier foreign subsidiaries 65.00%        
Credit Agreement | Revolving Line of Credit          
Line of Credit Facility [Line Items]          
Term loan       301,000,000.0  
Unsecured credit facility       100,000,000.0  
Additional borrowing capacity available       125,000,000.0  
Line of credit facility outstanding amount $ 0       $ 0
Fair value of term loan 297,200,000        
Line of credit, current 11,300,000        
Credit Agreement | Swing Line Loans          
Line of Credit Facility [Line Items]          
Term loan       25,000,000.0  
Credit Agreement | Letter of Credit          
Line of Credit Facility [Line Items]          
Term loan       $ 25,000,000.0  
Line of credit facility outstanding amount $ 1,800,000       $ 1,300,000
Minimum | Credit Agreement          
Line of Credit Facility [Line Items]          
Commitment fee percentage 0.25%        
Minimum | Eurodollar | Credit Agreement          
Line of Credit Facility [Line Items]          
Interest rate of credit facilities 1.50%        
Minimum | Base Rate | Credit Agreement          
Line of Credit Facility [Line Items]          
Interest rate of credit facilities 0.50%        
Maximum | Credit Agreement          
Line of Credit Facility [Line Items]          
Commitment fee percentage 0.35%        
Maximum | Eurodollar | Credit Agreement          
Line of Credit Facility [Line Items]          
Interest rate of credit facilities 2.00%        
Maximum | Base Rate | Credit Agreement          
Line of Credit Facility [Line Items]          
Interest rate of credit facilities 1.00%