XML 77 R37.htm IDEA: XBRL DOCUMENT v3.10.0.1
Description of Business and Significant Accounting Policies - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
segment
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Summary Of Significant Accounting Policy [Line Items]      
Number of reportable segments | segment 1    
Maximum reimbursement per claim occurrence $ 1,000    
Plan years to be settled 10 years    
Prepaid Insurance $ 33,000 $ 19,000  
Prepaid insurance premiums   11,000  
Advance collection 23,000 12,000  
Internally developed software costs 33,000 29,000 $ 21,000
Impairment of goodwill 0 0 0
Advertising costs 17,000 8,000 6,000
Bad Debt Expense Net Of Recoveries $ 1,000 $ 1,000 $ 1,000
Minimum      
Summary Of Significant Accounting Policy [Line Items]      
Estimated useful life of intangible assets 2 years    
Minimum | Software Development      
Summary Of Significant Accounting Policy [Line Items]      
Estimated useful life of intangible assets 3 years    
Minimum | Software And Office Equipment      
Summary Of Significant Accounting Policy [Line Items]      
Estimated useful life of property and equipment 3 years    
Minimum | Furniture, fixtures, and equipment      
Summary Of Significant Accounting Policy [Line Items]      
Estimated useful life of property and equipment 5 years    
Maximum      
Summary Of Significant Accounting Policy [Line Items]      
Estimated useful life of intangible assets 10 years    
Maximum | Software Development      
Summary Of Significant Accounting Policy [Line Items]      
Estimated useful life of intangible assets 5 years    
Maximum | Software And Office Equipment      
Summary Of Significant Accounting Policy [Line Items]      
Estimated useful life of property and equipment 5 years    
Maximum | Furniture, fixtures, and equipment      
Summary Of Significant Accounting Policy [Line Items]      
Estimated useful life of property and equipment 7 years    
Customer Concentration Risk | Accounts Receivable | Largest Customer      
Summary Of Significant Accounting Policy [Line Items]      
Concentration risk percentage 10.00% 47.00%  
Concentration Risk, Customer no 1  
Customer Concentration Risk | Revenue | Largest Customer      
Summary Of Significant Accounting Policy [Line Items]      
Concentration risk percentage 10.00% 10.00% 10.00%
Concentration Risk, Customer 0 0 0
Non-US | Geographic Concentration Risk | Revenue      
Summary Of Significant Accounting Policy [Line Items]      
Concentration risk percentage 1.00%