Goodwill and Intangible Assets - Intangible Assets Summary and Future Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Intangible assets
Gross Carrying Amount	$ 31,149	$ 31,137
Accumulated Amortization	(14,879)	(11,513)
Net Carrying Amount	16,270	19,624
Amortization expense	3,400	3,400
Estimated future amortization expense
2019	3,192
2020	2,636
2021	2,636
2022	2,636
2023	2,636
Thereafter	2,534
Net Carrying Amount	$ 16,270	19,624
Minimum
Intangible assets
Estimated useful life	5 years
Maximum
Intangible assets
Estimated useful life	15 years
Patents and tradenames
Intangible assets
Gross Carrying Amount	$ 3,418	3,418
Accumulated Amortization	(945)	(717)
Net Carrying Amount	2,473	2,701
Estimated future amortization expense
Net Carrying Amount	2,473	2,701
Customer relationships
Intangible assets
Gross Carrying Amount	24,077	24,077
Accumulated Amortization	(10,838)	(8,429)
Net Carrying Amount	13,239	15,648
Estimated future amortization expense
Net Carrying Amount	13,239	15,648
Non-compete agreements
Intangible assets
Gross Carrying Amount	3,654	3,642
Accumulated Amortization	(3,096)	(2,367)
Net Carrying Amount	558	1,275
Estimated future amortization expense
Net Carrying Amount	$ 558	$ 1,275