Employee Benefit Plans (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016
U.S. Pension Plans
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year		$ 49,220		$ 45,270
Service cost		0		0		$ 0
Interest cost		1,382		1,733		1,751
Actuarial (gain) loss		(2,571)		3,868
Benefit payments		(1,766)		(1,651)
Settlements		(36,585)		0
Foreign currency		0		0
Projected benefit obligation at end of year		9,680		49,220		45,270
Change in Plan Assets:
Fair value of plan assets at beginning of year		19,664	[1]	18,510
Actual return on plan assets		76		949
Company contributions		18,611		1,856
Expenses and benefits paid from plan assets		(1,766)		(1,651)
Settlements		(36,585)		0
Foreign currency		0		0
Fair value of plan assets at end of year		0	[1]	19,664	[1]	18,510
Funded Status:
Funded status of plan		(9,680)		(29,557)
Unrecognized actuarial loss (gain)	[2]	1,334		13,981
Net amount recognized		(8,346)		(15,576)
Non-U.S. Pension Plans
Change in Projected Benefit Obligation:
Projected benefit obligation at beginning of year		38,136		35,706
Service cost		615		664		703
Interest cost		393		486		614
Actuarial (gain) loss		(139)		121
Benefit payments		0		0
Settlements		(31,544)		(1,596)
Foreign currency		(1,058)		2,755
Projected benefit obligation at end of year		6,403		38,136		35,706
Change in Plan Assets:
Fair value of plan assets at beginning of year		20,324	[1]	19,011
Actual return on plan assets		689		183
Company contributions		1,722		1,259
Expenses and benefits paid from plan assets		0		0
Settlements		(19,217)		(1,596)
Foreign currency		(564)		1,467
Fair value of plan assets at end of year		2,954	[1]	20,324	[1]	$ 19,011
Funded Status:
Funded status of plan		(3,449)		(17,812)
Unrecognized actuarial loss (gain)	[2]	(592)		(1,857)
Net amount recognized		$ (4,041)		$ (19,669)

[1] In addition to the U.S. pension plan assets, ARRIS has established two rabbi trusts to further fund the pension obligations of the Executive Chairman and certain executive officers. The obligation for the Executive Chairman was distributed in the fourth quarter of 2018. The balance in the trusts as of December 31, 2018 and 2017 are $9.7 million and $25.4 million, respectively, and are included in Investments on the Consolidated Balance Sheets.

[2] The Accumulated other comprehensive (loss) income on the Consolidated Balance Sheets as of December 31, 2018 and 2017 is presented net of income tax.