Quarterly report pursuant to Section 13 or 15(d)

ACQUISITIONS AND INVESTMENTS - Additional Information (Details)

v3.8.0.1
ACQUISITIONS AND INVESTMENTS - Additional Information (Details)
AUD / shares in Units, AUD in Millions
Feb. 24, 2016
USD ($)
Feb. 24, 2016
AUD
Sep. 30, 2017
USD ($)
Aug. 10, 2017
Dec. 31, 2016
USD ($)
Aug. 23, 2016
Feb. 24, 2016
AUD
AUD / shares
Business Acquisition [Line Items]              
Debt, long term     $ 2,717,800,000   $ 2,685,400,000    
Term Loan, due Nov 2018              
Business Acquisition [Line Items]              
Debt, long term     $ 400,000,000   $ 450,000,000    
ID Watchdog, Inc.              
Business Acquisition [Line Items]              
Business acquisition, percentage of voting interests acquired       100.00%      
Veda              
Business Acquisition [Line Items]              
Business acquisition, percentage of voting interests acquired 100.00%           100.00%
Business combination, consideration transferred $ 1,700,000,000 AUD 2,400.0          
Business combination, separately recognized transactions, liabilities recognized 189,500,000           AUD 261.9
Business acquisition, share price (in Australian dollars per share) | AUD / shares             AUD 2.825
Debt, long term 1,700,000,000            
Veda | 364-Day Revolver              
Business Acquisition [Line Items]              
Business combination, debt instrument, face amount $ 800,000,000            
Bridge loan, term 364 days 364 days          
Veda | Term Loan, due Nov 2018              
Business Acquisition [Line Items]              
Business combination, debt instrument, face amount $ 800,000,000            
Debt instrument, term 3 years 3 years          
Barnett and Computersoft              
Business Acquisition [Line Items]              
Business acquisition, percentage of voting interests acquired           100.00%