Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Restricted Stock Units (RSUs)	Common Stock	Common Stock Restricted Stock Units (RSUs)	Additional Paid-In Capital	Additional Paid-In Capital Restricted Stock Units (RSUs)	Retained Earnings/(Accumulated Deficit)	Accumulated Other Comprehensive (Loss) Income
Beginning balance (in shares) at Jun. 30, 2020			162,191,000
Beginning balance at Jun. 30, 2020	$ 544,186		$ 1,622		$ 548,113		$ (4,295)	$ (1,254)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	89,591						89,591
Gain on cash flow hedge, net of tax	(375)							(375)
Amount reclassified into earnings, net of tax	234							234
Stock options exercised (in shares)			583,000
Stock options exercised	(4,906)		$ 6		(4,912)
Share-based compensation expense	2,240				2,240
Ending balance (in shares) at Dec. 31, 2020			162,774,000
Ending balance at Dec. 31, 2020	630,970		$ 1,628		545,441		85,296	(1,395)
Beginning balance (in shares) at Jun. 30, 2020			162,191,000
Beginning balance at Jun. 30, 2020	544,186		$ 1,622		548,113		(4,295)	(1,254)
Ending balance (in shares) at Jun. 30, 2021			163,510,000
Ending balance at Jun. 30, 2021	668,560		$ 1,635		544,771		121,925	229
Beginning balance (in shares) at Sep. 30, 2020			162,507,000
Beginning balance at Sep. 30, 2020	542,369		$ 1,625		546,815		(4,560)	(1,511)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	89,856						89,856
Gain on cash flow hedge, net of tax	0							0
Amount reclassified into earnings, net of tax	116							116
Stock options exercised (in shares)			267,000
Stock options exercised	(2,707)		$ 3		(2,710)
Share-based compensation expense	1,336				1,336
Ending balance (in shares) at Dec. 31, 2020			162,774,000
Ending balance at Dec. 31, 2020	630,970		$ 1,628		545,441		85,296	(1,395)
Beginning balance (in shares) at Jun. 30, 2021			163,510,000
Beginning balance at Jun. 30, 2021	668,560		$ 1,635		544,771		121,925	229
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(47,153)
Ending balance (in shares) at Sep. 30, 2021			163,930,000
Ending balance at Sep. 30, 2021	625,668		$ 1,639		549,034		74,772	223
Beginning balance (in shares) at Jun. 30, 2021			163,510,000
Beginning balance at Jun. 30, 2021	668,560		$ 1,635		544,771		121,925	229
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(184,161)						(184,161)
Gain on cash flow hedge, net of tax	1,423							1,423
Amount reclassified into earnings, net of tax	$ 346							346
Stock options exercised (in shares)	339,670		339,000
Stock options exercised	$ 1,282		$ 3		1,279
Issuance of common stock pursuant to employee stock purchase plan (in shares)			90,000
Issuance of common stock pursuant to employee stock purchase plan and vesting of restricted stock unit awards	989		$ 1		988
Vesting of restricted stock unit awards net of shares withheld to cover tax withholdings (in shares)				74,000
Vesting of restricted stock unit awards net of shares withheld to cover tax withholdings		$ (144)	$ 1			$ (145)
Share-based compensation expense	4,109				4,109
Ending balance (in shares) at Dec. 31, 2021			164,013,000
Ending balance at Dec. 31, 2021	492,404		$ 1,640		551,002		(62,236)	1,998
Beginning balance (in shares) at Sep. 30, 2021			163,930,000
Beginning balance at Sep. 30, 2021	625,668		$ 1,639		549,034		74,772	223
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(137,008)						(137,008)
Gain on cash flow hedge, net of tax	1,602							1,602
Amount reclassified into earnings, net of tax	173							173
Stock options exercised (in shares)			55,000
Stock options exercised	76		$ 0		76
Issuance of common stock pursuant to employee stock purchase plan (in shares)			0
Issuance of common stock pursuant to employee stock purchase plan and vesting of restricted stock unit awards	0		$ 0		0
Vesting of restricted stock unit awards net of shares withheld to cover tax withholdings (in shares)				28,000
Vesting of restricted stock unit awards net of shares withheld to cover tax withholdings		$ (1)		$ 1		$ (2)
Share-based compensation expense	1,894				1,894
Ending balance (in shares) at Dec. 31, 2021			164,013,000
Ending balance at Dec. 31, 2021	$ 492,404		$ 1,640		$ 551,002		$ (62,236)	$ 1,998