Revenue (Tables)

9 Months Ended

Sep. 30, 2020

Revenue Recognition [Abstract]

Disaggregation of Revenue [Table Text Block]

The following table presents our revenues disaggregated by geography, based on the billing addresses of our customers:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
	(In thousands)
U.S.	$	202,934	$	193,392	$	599,845	$	577,395
EMEA	54,034		51,480		159,103		155,221
China	27,463		30,647		86,676		88,337
Other	33,448		32,902		99,144		100,165
Total revenues	$	317,879	$	308,421	$	944,768	$	921,118