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Stock-based Compensation - Fair Value Assumptions and Expense (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate	1.72%	2.97%
Risk-free interest rate, minimum			1.58%	2.87%
Risk-free interest rate, maximum			1.72%	2.97%
Expected term	6 years 3 months 7 days	6 years 18 days	6 years 3 months 7 days	6 years 18 days
Dividend yield	0.00%	0.00%	0.00%	0.00%
Volatility	49.74%	50.02%
Volatility, minimum			49.74%	47.34%
Volatility, maximum			50.04%	50.02%
Weighted-average fair value (in dollars per share)	$ 10.30	$ 6.62	$ 9.14	$ 8.77
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Stock-based compensation expense before taxes	$ 4,964	$ 5,247	$ 10,018	$ 11,121
Income tax impact	(1,131)	(1,082)	(2,283)	(2,324)
Stock-based compensation expense, net	3,833	4,165	7,735	8,797
Employee stock option
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Unrecognized compensation cost related to non-vested stock-based awards	6,500		$ 6,500
Unrecognized compensation cost related to non-vested stock based awards, period for recognition (in years)			2 years 6 months 10 days
Restricted stock units (RSUs)
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Unrecognized compensation cost related to non-vested stock-based awards	32,600		$ 32,600
Unrecognized compensation cost related to non-vested stock based awards, period for recognition (in years)			2 years 9 months 21 days
Performance-Based Restricted Stock Units (PRSUs)
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Unrecognized compensation cost related to non-vested stock-based awards	100		$ 100
Unrecognized compensation cost related to non-vested stock based awards, period for recognition (in years)			1 year
Cost of sales
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Stock-based compensation expense before taxes	384	428	$ 779	866
Research and development
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Stock-based compensation expense before taxes	3,126	3,212	6,256	6,708
Sales and marketing
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Stock-based compensation expense before taxes	423	436	859	941
General and administrative
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Stock-based compensation expense before taxes	$ 1,031	$ 1,171	$ 2,124	$ 2,606

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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