Unaudited Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment
Beginning balance (in shares) at Jun. 30, 2020			48,147			5,975
Beginning balance at Jun. 30, 2020	$ 392,334	$ 56	$ 48	$ 764,906	$ (48,675)	$ (143,333)	$ (180,612)	$ 56
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan and upon exercise of stock options (in shares)						(156)
Issuance of common stock for employee stock purchase plan and upon exercise of stock options	4,589			783		$ 3,806
Vesting of restricted stock awards (in shares)			728
Vesting of restricted stock awards	1		$ 1
Issuance of common stock in connection with acquisition (in shares)			166
Issuance of common stock in connection with acquisition	8,183			8,183
Repurchase of common stock to be held in treasury (in shares)						238
Repurchase of common stock to be held in treasury	(10,755)					$ (10,755)
Stock compensation plan expense	33,655			33,655
Minimum pension liability adjustments, net of tax	(111)				(111)
Net loss	(8,993)						(8,993)
Unrealized loss on available for sale securities, net of tax	(31)				(31)
Change in fair value on interest rate hedging instruments	1,526				1,526
Foreign currency translation adjustment	19,028				19,028
Ending balance (in shares) at Mar. 31, 2021			49,041			6,057
Ending balance at Mar. 31, 2021	439,482		$ 49	807,527	(28,263)	$ (150,282)	(189,549)
Beginning balance (in shares) at Dec. 31, 2020			48,856			6,138
Beginning balance at Dec. 31, 2020	432,987		$ 49	795,630	(25,613)	$ (152,299)	(184,780)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan and upon exercise of stock options (in shares)						(81)
Issuance of common stock for employee stock purchase plan and upon exercise of stock options	2,421			404		$ 2,017
Vesting of restricted stock awards (in shares)			185
Stock compensation plan expense	11,493			11,493
Minimum pension liability adjustments, net of tax	453				453
Net loss	(4,769)						(4,769)
Unrealized loss on available for sale securities, net of tax	4				4
Change in fair value on interest rate hedging instruments	614				614
Foreign currency translation adjustment	(3,721)				(3,721)
Ending balance (in shares) at Mar. 31, 2021			49,041			6,057
Ending balance at Mar. 31, 2021	439,482		$ 49	807,527	(28,263)	$ (150,282)	(189,549)
Beginning balance (in shares) at Jun. 30, 2021			49,294			6,057
Beginning balance at Jun. 30, 2021	456,234		$ 49	819,392	(16,081)	$ (150,282)	(196,844)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan and upon exercise of stock options (in shares)						(160)
Issuance of common stock for employee stock purchase plan and upon exercise of stock options	4,760			456		$ 4,304
Vesting of restricted stock awards (in shares)			709
Vesting of restricted stock awards	1		$ 1
Repurchase of common stock to be held in treasury (in shares)						1,163
Repurchase of common stock to be held in treasury	(50,000)					$ (50,000)
Stock compensation plan expense	41,769			41,769
Minimum pension liability adjustments, net of tax	(354)				(354)
Net loss	(29,065)						(29,065)
Unrealized loss on available for sale securities, net of tax	0
Change in fair value on interest rate hedging instruments	3,028				3,028
Foreign currency translation adjustment	(9,790)				(9,790)
Ending balance (in shares) at Mar. 31, 2022			50,003			7,060
Ending balance at Mar. 31, 2022	416,583		$ 50	861,617	(23,197)	$ (195,978)	(225,909)
Beginning balance (in shares) at Dec. 31, 2021			49,809			7,142
Beginning balance at Dec. 31, 2021	411,128		$ 50	847,195	(19,485)	$ (198,247)	(218,385)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan and upon exercise of stock options (in shares)						(82)
Issuance of common stock for employee stock purchase plan and upon exercise of stock options	2,447			178		$ 2,269
Vesting of restricted stock awards (in shares)			194
Vesting of restricted stock awards			$ 0
Stock compensation plan expense	14,244			14,244
Minimum pension liability adjustments, net of tax	(142)				(142)
Net loss	(7,524)						(7,524)
Unrealized loss on available for sale securities, net of tax	(1)				(1)
Change in fair value on interest rate hedging instruments	1,705				1,705
Foreign currency translation adjustment	(5,274)				(5,274)
Ending balance (in shares) at Mar. 31, 2022			50,003			7,060
Ending balance at Mar. 31, 2022	$ 416,583		$ 50	$ 861,617	$ (23,197)	$ (195,978)	$ (225,909)