Goodwill (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying value and the activity

The carrying value of goodwill and the activity for the three months ended March 31, 2018 are as follows (in thousands):

Balance, December 31, 2017	$	909,811
Currency translation adjustments	8,481
Balance, March 31, 2018	$	918,292