Goodwill (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Change in Carrying Value of Goodwill

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

Balance at December 31, 2017	$	3,707,823
Adjustments to prior acquisitions		208
Effect of foreign currency translation		3,150
Balance at March 31, 2018	$	3,711,181