Summary of Significant Accounting Policies - Goodwill and Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2017
Intangible Assets:
Amortization expense	$ 700	$ 800	$ 2,200	$ 2,200
Goodwill	90,197		90,197		$ 87,214
Intangible assets, net	18,694		18,694		20,226
Gross Carrying Amount	42,700		42,700		42,000
Accumulated Amortization	(24,000)		(24,000)		(21,800)
Net Carrying Value	18,700		18,700		20,200
Impairment of goodwill					0
Assets written-off	0		0
Future amortization of intangible assets
2018	800		800
2019	3,000		3,000
2020	2,900		2,900
2021	2,400		2,400
2022	2,200		2,200
Thereafter	7,200		7,200
Trade names
Intangible Assets:
Gross Carrying Amount	17,600		17,600		17,600
Accumulated Amortization	(8,300)		(8,300)		(7,600)
Net Carrying Value	9,300		9,300		10,000
Customer and distributor relationships
Intangible Assets:
Gross Carrying Amount	20,500		20,500		20,100
Accumulated Amortization	(13,000)		(13,000)		(12,000)
Net Carrying Value	7,500		7,500		8,100
Developed technology
Intangible Assets:
Gross Carrying Amount	3,200		3,200		2,900
Accumulated Amortization	(2,100)		(2,100)		(1,700)
Net Carrying Value	1,100		1,100		1,200
Other
Intangible Assets:
Gross Carrying Amount	1,400		1,400		1,400
Accumulated Amortization	(600)		(600)		(500)
Net Carrying Value	$ 800		$ 800		$ 900