Goodwill and Other Intangible Assets - Goodwill and other intangible assets rollforward (Details) - USD ($) $ in Thousands		9 Months Ended
	Jul. 24, 2015	Sep. 30, 2015
Goodwill
Goodwill, beginning of period		$ 415,936
Goodwill acquired during the period		791,433
Foreign currency translation		(3,775)
Goodwill, end of period		1,203,594
Intangible assets with an indefinite life
Intangible assets with an indefinite life, beginning of period		15,366
Indefinite-lived intangible assets acquired during the period		673,000
Intangible assets with an indefinite life, end of period		688,366
Intangible assets with a definite life
Intangible assets with a definite life, beginning of period		16,650
Finite-lived intangible assets acquired during the period		315,000
Amortization		(9,922)
Intangible assets with a definite life, end of period		321,728
Total
Goodwill and other intangible assets, beginning of period		447,952
Additions		1,779,433
Amortization		(9,922)
Foreign currency translation		(3,775)
Goodwill and other intangible assets, end of period		$ 2,213,688
New Energy Risk Inc.
Goodwill
Goodwill acquired during the period	$ 13,400