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1127 - Disclosure - Assumptions Used to Determine Benefit Obligations (Detail)
(http://www.arrisgroup.com/taxonomy/role/DisclosureAssumptionsUsedToDetermineBenefitObligations)
TableSchedule of Defined Benefit Plans Disclosures [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001645494 (http://www.sec.gov/CIK)
Legal Entity [Axis]Entity [Domain]
Defined Benefit Plan Disclosure [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]
U.S. Pension PlansForeign Pension PlanU.S. Pension PlansForeign Pension PlanU.S. Pension PlansForeign Pension Plan
Weighted-average assumptions used to determine benefit obligations, Discount rate
3.90%  
1.30%  
4.15%  
1.70%  
3.75%  
1.90%  
Weighted-average assumptions used to determine benefit obligations, Rate of compensation increase
0.00%  
0.00%  
0.00%  
0.00%  
0.00%  
0.00%  
Weighted-average assumptions used to determine net periodic benefit costs, Discount rate
4.15%  
1.70%  
3.75%  
1.90%  
4.50%  
1.80%  
Weighted-average assumptions used to determine net periodic benefit costs, Expected long-term rate of return on plan assets
6.00%  
1.60%  
6.00%  
2.00%  
6.00%  
2.00%  
Weighted-average assumptions used to determine net periodic benefit costs, Rate of compensation increase
 
3.00% 1
 
3.00% 1
 
3.25% 1
1: Represent an average rate for the non-U.S. pension plans. Rate of compensation increase is 4.00% for indirect labor and 2.00% for direct labor for 2016 and 2015. Rate of compensation increase is 4.50% for indirect labor and 2.00% for direct labor for 2014.