Revenues (Narratives) (Details)	3 Months Ended		6 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) Distribution_Channels	Dec. 31, 2017 USD ($)
Disaggregation Of Revenue [Line Items]
Number of distribution channels | Distribution_Channels			2
Estimated selling price determination approach			Certain of the Company’s contracts have multiple performance obligations, as the promise to transfer individual goods or services is separately identifiable from other promises in the contracts and, therefore, is distinct. For contracts with multiple performance obligations, the Company allocates the contract’s transaction price to each performance obligation based on its relative standalone selling price. The stand-alone selling prices are determined based on the prices at which the Company separately sells these products. For items that are not sold separately, the Company estimates the stand-alone selling prices using the best estimated selling price approach.
Remaining revenue performance obligations	$ 186,100,000		$ 186,100,000
Revenue recognized for deferred revenue balance	59,900,000	$ 36,900,000	$ 88,800,000	$ 52,900,000
Commission Fees
Disaggregation Of Revenue [Line Items]
Revenue, practical expedient, incremental cost of obtaining contract [true false]			true
Contract costs capitalized, balances amount	$ 5,300,000	3,200,000	$ 5,300,000	3,200,000
Contract costs capitalized, amortization period	3 years		3 years
Contract costs capitalized, amortization method			straight-line basis
Contract costs capitalized, amortization expense	$ 700,000	500,000	$ 1,400,000	900,000
Contract costs capitalized, impairment loss	$ 0	$ 0	$ 0	$ 0