XML 108 R93.htm IDEA: XBRL DOCUMENT v3.20.4
Reportable Segments (Details Textual)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
segment
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Reportable Segments (Textual) [Abstract]        
Number of reportable segments | segment   4    
Unrealized Loss on Securities   $ 4.8 $ 10.0  
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings   1.6    
Gain (Loss) on Sale of Assets and Asset Impairment Charges   7.5 17.5 $ (1.5)
Unrealized Gain on Securities   2.5 31.2  
Legal Fees $ 30.5 34.7 0.7  
Currency remeasurement   0.2 0.1 3.8
Loan Related Fees   1.6 2.0 1.6
Reimbursement   (0.1)    
UNITED KINGDOM        
Reportable Segments (Textual) [Abstract]        
Gain (Loss) on Sale of Assets and Asset Impairment Charges   1.8    
Callcredit [Member] | Acquisition-related Costs [Member]        
Reportable Segments (Textual) [Abstract]        
Business Combination, Integration Related Costs   7.5 $ 15.8 $ 6.8
Tru Optik [Member]        
Reportable Segments (Textual) [Abstract]        
Currency remeasurement   $ (8.1)