Investments (Tables)

3 Months Ended

Mar. 31, 2014

Equity Method Investments and Joint Ventures [Abstract]

Equity method investments

Investments consisted of the following:

(in thousands)	As of
	March 31,		December 31,
	2014		2013
Equity-method investments	$	483,195	$	473,018
Cost-method investments		18,347		15,180
Total investments	$	501,542	$	488,198