Goodwill (Tables)

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in carrying amount of goodwill

Changes in the carrying amount of goodwill are as follows (in thousands):

Balance as of December 31, 2013	$	750,785
Foreign currency translation	73
Balance as of September 30, 2014	$	750,858