Quarterly report pursuant to Section 13 or 15(d)

Business Combinations - Narrative (Details)

v3.22.1
Business Combinations - Narrative (Details)
$ in Thousands, £ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2022
USD ($)
Jan. 31, 2022
USD ($)
Jan. 31, 2022
GBP (£)
Oct. 06, 2021
USD ($)
Sep. 30, 2021
USD ($)
Sep. 14, 2021
USD ($)
Sep. 14, 2021
GBP (£)
May 28, 2021
USD ($)
asset
Mar. 31, 2022
USD ($)
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Business Acquisition [Line Items]                        
Cash consideration paid, net of cash acquired                   $ 4 $ 413,940  
Number of intangible assets acquired | asset               3        
Goodwill $ 1,780,370       $ 1,774,406       $ 1,780,370 1,780,370    
VES Group, Inc.                        
Business Acquisition [Line Items]                        
Percentage of voting equity interests acquired               100.00%        
Cash consideration paid, net of cash acquired 1,360,231       1,360,231     $ 1,370,000        
Liabilities arising from contingencies               12,000       $ 12,000
Indemnification assets               6,000        
Liability for uncertainty in income taxes               12,300        
Goodwill 867,043       864,176       867,043 867,043    
Intangible assets $ 664,000       $ 664,000       664,000 664,000    
VES Group, Inc. | Indemnification Asset On Uncertain Tax Positions                        
Business Acquisition [Line Items]                        
Indemnification assets               $ 7,200        
Connect Assist                        
Business Acquisition [Line Items]                        
Percentage of voting equity interests acquired           100.00%            
Cash payment to acquire business           $ 21,100 £ 15.5          
Goodwill           11,300            
Intangible assets           $ 7,700            
Navient                        
Business Acquisition [Line Items]                        
Intangible assets       $ 16,700                
Contingent consideration       $ 18,600                
Amortization period       27 months                
Revenue contributed from acquired business                 47,000 81,700    
Gross profit contributed from acquired business                 (3,400) (1,400)    
Navient | Maximum                        
Business Acquisition [Line Items]                        
Contingent consideration       $ 65,000                
BZ Bodies Limited                        
Business Acquisition [Line Items]                        
Percentage of voting equity interests acquired   100.00%                    
Cash payment to acquire business   $ 2,900 £ 2.2                  
Goodwill   1,500                    
Intangible assets   $ 1,300                    
Revenue contributed from acquired business                 1,100 1,100    
Gross profit contributed from acquired business                 $ 600 $ 600