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Indebtedness - Senior Credit Facilities (Details)
$ in Millions
 1 Months Ended 12 Months Ended
Aug. 12, 2022
USD ($)
Aug. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2022
USD ($)
Foreign credit instrument facility        
Line of Credit Facility [Line Items]        
Line of credit       $ 14.8
Senior Credit Facilities        
Line of Credit Facility [Line Items]        
Loss on extinguishment of debt   $ 1.1 $ 0.2  
Loss on amendment/refinancing of senior credit agreement   0.7    
Unamortized debt issuance costs   0.4    
Debt instrument, fee amount   1.5    
Senior Credit Facilities | Senior credit facility        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity under financing arrangement $ 770.0      
Senior Credit Facilities | Senior credit facility | Last Day Of Any Fiscal Quarter | Maximum        
Line of Credit Facility [Line Items]        
Coverage ratio 3.75      
Senior Credit Facilities | Senior credit facility | Last Day Of Any Fiscal Quarter | Minimum        
Line of Credit Facility [Line Items]        
Interest coverage ratio 3.00      
Senior Credit Facilities | Senior credit facility | Four Fiscal Quarters After Certain Permitted Acquisitions        
Line of Credit Facility [Line Items]        
Coverage ratio 4.00      
Senior Credit Facilities | Senior credit facility | Four Fiscal Quarters After Certain Permitted Acquisitions Financed By Unsecured Debt        
Line of Credit Facility [Line Items]        
Coverage ratio 4.25      
Senior Credit Facilities | Term loans        
Line of Credit Facility [Line Items]        
Debt instrument, fee amount   0.3    
Senior Credit Facilities | Revolving loans        
Line of Credit Facility [Line Items]        
Debt instrument, fee amount   $ 1.2    
Current SPX Term Loan Facilities | Term loans        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity under financing arrangement $ 245.0      
Unamortized debt issuance costs     $ 1.0 $ 0.7
Revolving loans | Foreign credit instrument facility        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity under financing arrangement 500.0      
Revolving loans | Financial Letters Of Credit | Letters of credit and guarantees        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity under financing arrangement 200.0      
Revolving loans | Non - Financial Letters Of Credit | Letters of credit and guarantees        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity under financing arrangement 50.0      
Revolving loans | Non-U.S. Exposure | Letters of credit and guarantees        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity under financing arrangement 150.0      
Revolving loans | Bilateral foreign credit instrument facility | Term loans        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity under financing arrangement $ 200.0      
EBITDA, Consolidated Coverage Ratio 2.75      
Revolving loans | Bilateral foreign credit instrument facility | Letters of credit and guarantees        
Line of Credit Facility [Line Items]        
Maximum borrowing capacity under financing arrangement $ 25.0      
Term loans | Senior Credit Facilities | SOFR        
Line of Credit Facility [Line Items]        
Basis spread on variable rate (as a percent) 1.00%      
Variable rate, applicable interest period 0.10%