XML 66 R50.htm IDEA: XBRL DOCUMENT v3.10.0.1
Business Combinations - Narrative (Details)
$ in Thousands, £ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jul. 01, 2018
USD ($)
Jul. 01, 2018
GBP (£)
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Business Acquisition [Line Items]              
Drawdown from existing revolving credit facility         $ 87,650 $ 0 $ 0
Redeemable noncontrolling interest in subsidiaries       $ 182,513 182,513 30,163  
Derivative loss     $ 29,000        
Foreign Currency Forward              
Business Acquisition [Line Items]              
Derivative loss         4,000    
Hermes              
Business Acquisition [Line Items]              
Redeemable noncontrolling interest in subsidiaries       170,900 170,900    
Hermes | Restricted Stock | Put Option              
Business Acquisition [Line Items]              
Period after vesting 9 months 9 months          
Hermes | Restricted Stock | Minimum              
Business Acquisition [Line Items]              
Vesting period 3 years 3 years          
Hermes | Restricted Stock | Maximum              
Business Acquisition [Line Items]              
Vesting period 5 years 5 years          
Hermes              
Business Acquisition [Line Items]              
Remaining interest contributed to employee benefit trust 10.50% 10.50%          
Hermes | BTPS              
Business Acquisition [Line Items]              
Ownership interest retained 29.50% 29.50%          
Hermes              
Business Acquisition [Line Items]              
Payments to acquire business $ 344,300 £ 260.7          
Drawdown from existing revolving credit facility $ 18,000            
Fair value of Redeemable noncontrolling interest 33.00% 33.00%          
Transaction costs       15,100 15,100    
Transaction costs expensed         $ 13,300 $ 1,800  
Foreign exchange gain     $ 1,700        
Hermes revenue       100,800      
Hermes net income       $ 9,600