Goodwill and intangible assets Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jul. 02, 2016
Finite-Lived Intangible Assets [Line Items]
Acquired amount	$ 347,817	$ 64,082
Accumulated Amortization	(51,759)	(41,511)
Net Book Value	296,058	22,571
Customer related
Finite-Lived Intangible Assets [Line Items]
Acquired amount	50,505	47,980
Accumulated Amortization	(37,587)	(34,515)
Net Book Value	12,918	13,465
PF acquired intangibles
Finite-Lived Intangible Assets [Line Items]
Acquired amount	283,482
Accumulated Amortization	(7,755)
Net Book Value	275,727
Trade name
Finite-Lived Intangible Assets [Line Items]
Acquired amount	2,163	3,746
Accumulated Amortization	(1,406)	(2,718)
Net Book Value	757	1,028
Other
Finite-Lived Intangible Assets [Line Items]
Acquired amount	11,667	12,356
Accumulated Amortization	(5,011)	(4,278)
Net Book Value	$ 6,656	$ 8,078