Revenue from Contracts with Customers (Details 2) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
ASSETS
Accounts receivable		$ 1,117,641		$ 1,117,641		$ 1,218,089
Other current assets		201,111		201,111		145,953
Deferred income taxes		155,193		155,193		115,436
Liabilities
Deferred revenue (current and non-current)		174,542		174,542		$ 168,757
Revenues
Net sales		1,651,248	$ 1,728,524	4,955,498	$ 4,875,799
Costs and expenses
Cost of sales		1,186,059	1,297,369	3,515,871	3,704,029
Income tax benefit		(15,652)	(14,311)	(22,106)	(12,613)
Consolidated net income		45,808	86,815	63,574	74,259
Net loss attributable to non-controlling interest		(1,271)	(1,505)	(5,659)	(5,299)
Net income attributable to ARRIS International plc		$ 47,079	$ 88,320	$ 69,233	$ 79,558
Net income per ordinary share:
Basic (in dollars per share)	[1]	$ 0.26	$ 0.47	$ 0.38	$ 0.42
Diluted (in dollars per share)	[1]	$ 0.26	$ 0.47	$ 0.38	$ 0.42
Pro Forma
ASSETS
Accounts receivable		$ 1,106,550		$ 1,106,550
Other current assets		201,047		201,047
Deferred income taxes		149,971		149,971
Liabilities
Deferred revenue (current and non-current)		176,002		176,002
Revenues
Net sales		1,655,526		4,931,254
Costs and expenses
Cost of sales		1,186,059		3,515,935
Income tax benefit		(16,042)		(16,884)
Consolidated net income		50,477		34,045
Net loss attributable to non-controlling interest		(1,292)		(4,388)
Net income attributable to ARRIS International plc		$ 51,769		$ 40,467
Net income per ordinary share:
Basic (in dollars per share)		$ 0.29		$ 0.22
Diluted (in dollars per share)		$ 0.29		$ 0.22

[1] Calculated based on net income attributable to stockholders of ARRIS International plc