Summary of Significant Accounting Policies - Concentrations (Details) - Net sales	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Products | Product 1
Concentration risk
Concentration risk (as a percent)	15.00%	10.00%	15.00%	9.00%
Products | Product 2
Concentration risk
Concentration risk (as a percent)	8.00%	15.00%	8.00%	18.00%
Customers | Customer A
Concentration risk
Concentration risk (as a percent)	26.00%	21.00%	26.00%	23.00%
Customers | Customer B
Concentration risk
Concentration risk (as a percent)	21.00%	26.00%	22.00%	26.00%
Customers | Customer C
Concentration risk
Concentration risk (as a percent)	12.00%	8.00%	11.00%	10.00%