v3.24.2.u1
Restructuring Costs, Net - Activity within Liability Established for Restructuring Actions (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2024
Restructuring Cost and Reserve [Line Items]    
Beginning balance   $ 11.8
Ending Balance $ 9.9 9.9
CommScope NEXT Restructuring Plan [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning balance 9.1 11.7
Additional expense, net 0.9 31.4
Cash paid (7.0) (16.3)
Third-party indemnification receivable [1] 7.5 7.5
Foreign exchange and other non-cash items (0.6) (24.4)
Ending Balance 9.9 9.9
Employee-Related Costs [Member] | CommScope NEXT Restructuring Plan [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning balance 9.1 11.7
Additional expense, net 0.6 7.0
Cash paid (6.9) (15.9)
Third-party indemnification receivable [1] 7.0 7.0
Foreign exchange and other non-cash items 0.1 0.1
Ending Balance 9.9 9.9
Other Costs [Member] | CommScope NEXT Restructuring Plan [Member]    
Restructuring Cost and Reserve [Line Items]    
Beginning balance 0.0 0.0
Additional expense, net 0.3 24.4
Cash paid (0.1) (0.4)
Third-party indemnification receivable [1] 0.5 0.5
Foreign exchange and other non-cash items (0.7) (24.5)
Ending Balance $ 0.0 $ 0.0
[1] Reflects the reimbursement of severance and other costs from a third-party, for which the Company is obligated to pay.