Goodwill and Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Apr. 07, 2014	Dec. 31, 2013	Jun. 30, 2013	May 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 1,725,153	$ 1,523,055	$ 208,743	$ 209,190	$ 129,070
Goodwill, Period Increase (Decrease)	1,523,055
Goodwill, Impairment Loss	$ (6,645)