v3.26.1
Acquisitions - Additional Information (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jan. 14, 2026
Oct. 01, 2025
Jun. 30, 2025
Jan. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Mar. 31, 2026
Business Acquisition [Line Items]                    
Amortization of intangible assets         $ 23,700,000 $ 17,100,000 $ 47,500,000 $ 33,400,000    
Revenues         1,575,867,000 $ 1,584,323,000 3,067,043,000 $ 3,138,683,000    
Goodwill         2,421,427,000   2,421,427,000   $ 2,186,650,000  
Paid in 18 months                    
Business Acquisition [Line Items]                    
Cash paid to acquire       $ 3,800,000            
Altamira Technologies Corporation                    
Business Acquisition [Line Items]                    
Percentage of ownership interest acquired 100.00%                  
Cash paid to acquire $ 338,745,000                  
Estimated fair value of contingent consideration         900,000   900,000     $ 10,500,000
Earnout payment 0                  
Borrowed under credit agreement to partially fund the acquisition 330,000,000                  
Amortization of intangible assets         6,000,000   12,100,000      
Revenues         50,400,000   90,200,000      
Goodwill 236,501,000                  
Goodwill deductible for tax purposes         2,200,000   2,200,000      
Altamira Technologies Corporation | Maximum                    
Business Acquisition [Line Items]                    
Additional amount agreed to pay the selling shareholders in the event an earn out EBITDA target is exceeded $ 45,000,000                  
Altamira Technologies Corporation | Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense                    
Business Acquisition [Line Items]                    
Acquisition related expenses         0   5,000,000      
Chesapeake Technology International, Corp                    
Business Acquisition [Line Items]                    
Percentage of ownership interest acquired     100.00%     100.00%   100.00%    
Cash paid to acquire     $ 91,500,000              
Amortization of intangible assets         1,400,000   2,700,000      
Revenues         18,800,000   36,500,000      
Goodwill     $ 57,468,000     $ 57,468,000   $ 57,468,000    
Goodwill deductible for tax purposes         8,800,000   8,800,000      
Chesapeake Technology International, Corp | Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense                    
Business Acquisition [Line Items]                    
Acquisition related expenses                 2,200,000  
Applied Sciences Consulting, Inc.                    
Business Acquisition [Line Items]                    
Percentage of ownership interest acquired   100.00%                
Cash paid to acquire   $ 28,200,000                
Amortization of intangible assets         400,000   800,000      
Revenues         3,300,000   5,700,000      
Goodwill   $ 21,852,000                
Applied Sciences Consulting, Inc. | Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense                    
Business Acquisition [Line Items]                    
Acquisition related expenses                 500,000  
TRS group Inc                    
Business Acquisition [Line Items]                    
Percentage of ownership interest acquired       100.00%            
Cash paid to acquire       $ 36,600,000            
Amortization of intangible assets         $ 400,000 400,000 $ 700,000 700,000    
Revenues           $ 7,400,000   $ 11,500,000    
Goodwill       $ 22,972,000            
TRS group Inc | Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense                    
Business Acquisition [Line Items]                    
Acquisition related expenses                 $ 500,000