XML 67 R52.htm IDEA: XBRL DOCUMENT v3.3.1.900
Summary of Significant Accounting Policies Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2016
Jan. 31, 2015
Jan. 31, 2014
Significant Accounting Policies      
Capitalized Computer Software, Additions     $ 3,698
Finance fee percentage of revenue 2.00% 2.00% 2.00%
Prepaid expenses and other $ 22,550 $ 21,405  
Other assets 70,860 62,609  
Notes Payable, Noncurrent $ 240,076 227,386  
Building      
Significant Accounting Policies      
Property, plant and equipment, useful life 40 years    
Land Improvements      
Significant Accounting Policies      
Property, plant and equipment, useful life 20 years    
Office Equipment | Minimum      
Significant Accounting Policies      
Property, plant and equipment, useful life 3 years    
Office Equipment | Maximum      
Significant Accounting Policies      
Property, plant and equipment, useful life 5 years    
Leasehold Improvements | Minimum      
Significant Accounting Policies      
Property, plant and equipment, useful life 3 years    
Leasehold Improvements | Maximum      
Significant Accounting Policies      
Property, plant and equipment, useful life 10 years    
Purchased Technology | Minimum      
Significant Accounting Policies      
Finite-Lived intangible asset, useful life 3 years    
Purchased Technology | Maximum      
Significant Accounting Policies      
Finite-Lived intangible asset, useful life 5 years    
Other Intangible Assets | Minimum      
Significant Accounting Policies      
Finite-Lived intangible asset, useful life 2 years    
Other Intangible Assets | Maximum      
Significant Accounting Policies      
Finite-Lived intangible asset, useful life 5 years    
Frontline      
Significant Accounting Policies      
Equity method investment, ownership percentage 50.00%    
Scenario, previously reported      
Significant Accounting Policies      
Prepaid expenses and other   22,357  
Other assets   64,671  
Notes Payable, Noncurrent   230,400  
4.00% Debentures due 2031      
Significant Accounting Policies      
Deferred Finance Costs, Net $ 2,062 3,014  
Notes Payable, Noncurrent $ 234,888 $ 227,386