Goodwill

6 Months Ended

Jun. 30, 2014

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill

8. Goodwill

The change in carrying value of goodwill as of and for the six months ended June 30, 2014 is as follows (in thousands):

Balance at December 31, 2013	$	1,541,386
Effect of foreign currency translation		6,118
Balance at June 30, 2014	$	1,547,504