XML 38 R46.htm IDEA: XBRL DOCUMENT v3.19.2
Revenue Recognition, Contracts with Customers, Remaining Performance Obligations, Assets Recognized for the Costs to Obtain or Fulfill a Contract (Details) - USD ($)
$ in Thousands
3 Months Ended
Jul. 31, 2019
Jul. 31, 2018
Remaining Performance Obligations [Abstract]    
Remaining performance obligations $ 422,400  
Assets Recognized for the Costs to Obtain or Fulfill a Contract [Abstract]    
Costs capitalized 9,500  
Amortization 1,000 $ 800
Cost of revenue [Abstract]    
Operating and administrative expenses 250,170 240,426
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-01-31    
Remaining Performance Obligations [Abstract]    
Remaining performance obligations $ 375,200  
Expected timing of satisfaction, period 12 months  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-31    
Remaining Performance Obligations [Abstract]    
Remaining performance obligations $ 13,800  
Expected timing of satisfaction, period  
Shipping and Handling [Member]    
Cost of revenue [Abstract]    
Operating and administrative expenses $ 7,400 $ 7,900