Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning Balance (in shares) at Jun. 30, 2017		46,303,000
Beginning Balance at Jun. 30, 2017	$ 725,417	$ 463	$ 584,795	$ 139,085	$ 1,074
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		868,000
Issuance of common stock under employee stock incentive plans	663	$ 8	655
Issuance of common stock under employee stock purchase plan (in shares)		82,000
Issuance of common stock under employee stock purchase plan	2,782	$ 1	2,781
Stock Repurchased and Retired During Period, Shares		(329,000)
Stock Repurchased and Retired During Period, Value	(15,508)	$ (3)	(15,505)
Stock-based compensation	17,437		17,437
Net income	40,883			40,883
Other Comprehensive Income (Loss), Net of Tax					217
Foreign currency translation adjustments	(137)
Ending Balance (in shares) at Jun. 30, 2018		46,924,000
Ending Balance at Jun. 30, 2018	771,891	$ 469	590,163	179,968	1,291
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		478,000
Issuance of common stock under employee stock incentive plans	0	$ 5	(5)
Issuance of common stock under employee stock purchase plan (in shares)		102,000
Issuance of common stock under employee stock purchase plan	3,661	$ 1	3,660
Stock Repurchased and Retired During Period, Shares		(156,000)
Stock Repurchased and Retired During Period, Value	(7,968)	$ (2)	(7,966)
Stock Issued During Period, Shares, New Issues		6,900,000
Stock Issued During Period, Value, New Issues	453,573	$ 69	453,504
Stock-based compensation	19,389		19,389
Net income	46,775			46,775
Other Comprehensive Income (Loss), Net of Tax					(2,582)
Foreign currency translation adjustments	$ (232)
Ending Balance (in shares) at Jun. 30, 2019	54,247,532	54,248,000
Ending Balance at Jun. 30, 2019	$ 1,284,739	$ 542	1,058,745	226,743	(1,291)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		562,000
Issuance of common stock under employee stock incentive plans	5	$ 6	(1)
Issuance of common stock under employee stock purchase plan (in shares)		89,000
Issuance of common stock under employee stock purchase plan	5,312	$ 1	5,311
Stock Repurchased and Retired During Period, Shares		(197,000)
Stock Repurchased and Retired During Period, Value	(16,249)	$ (2)	(16,247)
Stock-based compensation	26,859		26,859
Net income	85,712			85,712
Other Comprehensive Income (Loss), Net of Tax					(1,594)
Foreign currency translation adjustments	$ 174
Ending Balance (in shares) at Jul. 03, 2020	54,702,322	54,702,000
Ending Balance at Jul. 03, 2020	$ 1,384,784	$ 547	$ 1,074,667	$ 312,455	$ (2,885)