Goodwill and Intangibles Asset Rollforward (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2016	Mar. 31, 2015
Goodwill and Intangible Assets [Line Items]
Goodwill	[1]	$ 16,463	$ 2,794	$ 16,463	$ 2,794
Gross balance					69,889
Amortizable Intangibles, Accumulated amortization					(37,998)
Goodwill, Acquired During Period				13,669
Finite-lived Intangible Assets [Roll Forward]
Net balance		67,034	31,891	30,994
Additions				38,499
Amortization expense		(1,139)	(897)	(2,459)
Net balance		65,895	30,994	67,034
North America
Goodwill and Intangible Assets [Line Items]
Goodwill		2,794
Other Regions
Goodwill and Intangible Assets [Line Items]
Goodwill		$ 13,669
Customer Relationships Intangible
Goodwill and Intangible Assets [Line Items]
Weighted average remaining useful life in years		12 years 9 months
Amortizable Intangibles, Gross carrying amount					33,700
Amortizable Intangibles, Accumulated amortization					(16,639)
Finite-lived Intangible Assets [Roll Forward]
Net balance		$ 40,206	17,061	16,640
Additions				24,830
Amortization expense		(836)	(421)	(1,264)
Net balance		$ 39,370	16,640	40,206
Production and Supply Contract Intangibles
Goodwill and Intangible Assets [Line Items]
Weighted average remaining useful life in years		4 years 6 months
Amortizable Intangibles, Gross carrying amount					14,893
Amortizable Intangibles, Accumulated amortization					(5,786)
Finite-lived Intangible Assets [Roll Forward]
Net balance		$ 8,282	9,107	8,837
Additions				0
Amortization expense		(110)	(270)	(555)
Net balance		$ 8,172	8,837	8,282
Internally Developed Software Intangible
Goodwill and Intangible Assets [Line Items]
Weighted average remaining useful life in years		0 years
Amortizable Intangibles, Gross carrying amount					18,502
Amortizable Intangibles, Accumulated amortization					$ (15,573)
Finite-lived Intangible Assets [Roll Forward]
Net balance		$ 2,083	2,929	2,723
Additions				0
Amortization expense		(193)	(206)	(640)
Net balance		$ 1,890	$ 2,723	$ 2,083

[1] Goodwill of $2,794 relates to the North America segment