Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES - Additional Information (Details)

v3.8.0.1
COMMITMENTS AND CONTINGENCIES - Additional Information (Details)
customer in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
USD ($)
customer
Sep. 30, 2017
USD ($)
Commitments and Contingencies Disclosure [Line Items]    
Maximum potential future payments required to make under guarantees $ 0 $ 0
Performance Bonds    
Commitments and Contingencies Disclosure [Line Items]    
Notional amount 0 0
Letter of Credit    
Commitments and Contingencies Disclosure [Line Items]    
Notional amount $ 0 $ 0
Maximum    
Commitments and Contingencies Disclosure [Line Items]    
Debt instrument, term (or less)   1 year
Cybersecurity Incident | United States    
Commitments and Contingencies Disclosure [Line Items]    
Number of customers impacted | customer 145,500  
Number of customers, personal information accessed | customer 182  
Cybersecurity Incident | United States and Canada    
Commitments and Contingencies Disclosure [Line Items]    
Number of customers, credit card information accessed | customer 209  
Cybersecurity Incident | Canada    
Commitments and Contingencies Disclosure [Line Items]    
Number of customers, personal information accessed | customer 8  
Cybersecurity Incident | United Kingdom    
Commitments and Contingencies Disclosure [Line Items]    
Number of customers, personal information accessed | customer 690  
Investigation, Remediation, Legal, And Other Professional Services    
Commitments and Contingencies Disclosure [Line Items]    
Insurance coverage deductible   $ 7,500,000.0
Investigation, Remediation, Legal, And Other Professional Services | Selling, General and Administrative Expenses    
Commitments and Contingencies Disclosure [Line Items]    
Cybersecurity incident remediation, legal, and other professional costs $ 27,300,000  
Free Credit File Monitoring And Identity Theft Protection Offering    
Commitments and Contingencies Disclosure [Line Items]    
Cybersecurity incident remediation, legal, and other professional costs   4,700,000
Free Credit File Monitoring And Identity Theft Protection Offering | Minimum    
Commitments and Contingencies Disclosure [Line Items]    
Potential loss estimate 56,000,000 56,000,000
Free Credit File Monitoring And Identity Theft Protection Offering | Maximum    
Commitments and Contingencies Disclosure [Line Items]    
Potential loss estimate $ 110,000,000 $ 110,000,000