CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Balance (shares) at Jun. 30, 2020			109,123				7,238
Balance at Jun. 30, 2020	$ 1,443,554	$ (310)	$ 1,092	$ 1,171,875	$ 614,171	$ (310)	$ (172,192)	$ (171,392)
Increase (Decrease) in Stockholders' Equity
Net income	485				485
Other comprehensive income (loss)	31,005							31,005
Issuance of common stock pursuant to stock-based compensation plans (shares)			54
Issuance of common stock pursuant to stock-based compensation plans	0		$ 1	(1)
Employee shares withheld for taxes (shares)							20
Employee shares withheld for taxes	(468)						$ (468)
Repurchases of common stock (shares)							1,281
Repurchases of common stock	(42,052)						$ (42,052)
Stock-based compensation expense	4,367			4,367
Balance (shares) at Sep. 30, 2020			109,177				8,539
Balance at Sep. 30, 2020	1,436,581		$ 1,093	1,176,241	614,346		$ (214,712)	(140,387)
Balance (shares) at Jun. 30, 2020			109,123				7,238
Balance at Jun. 30, 2020	1,443,554	$ (310)	$ 1,092	1,171,875	614,171	$ (310)	$ (172,192)	(171,392)
Increase (Decrease) in Stockholders' Equity
Net income	2,625
Balance (shares) at Dec. 31, 2020			109,339				9,500
Balance at Dec. 31, 2020	1,454,649		$ 1,095	1,180,062	616,486		$ (245,651)	(97,343)
Balance (shares) at Sep. 30, 2020			109,177				8,539
Balance at Sep. 30, 2020	1,436,581		$ 1,093	1,176,241	614,346		$ (214,712)	(140,387)
Increase (Decrease) in Stockholders' Equity
Net income	2,140				2,140
Other comprehensive income (loss)	43,044							43,044
Issuance of common stock pursuant to stock-based compensation plans (shares)			162
Issuance of common stock pursuant to stock-based compensation plans	0		$ 2	(2)
Employee shares withheld for taxes (shares)							38
Employee shares withheld for taxes	(1,255)						$ (1,255)
Repurchases of common stock (shares)							923
Repurchases of common stock	(29,684)						$ (29,684)
Stock-based compensation expense	3,823			3,823
Balance (shares) at Dec. 31, 2020			109,339				9,500
Balance at Dec. 31, 2020	$ 1,454,649		$ 1,095	1,180,062	616,486		$ (245,651)	(97,343)
Balance (shares) at Jun. 30, 2021	109,507		109,507				10,438
Balance at Jun. 30, 2021	$ 1,522,883		$ 1,096	1,187,530	691,225		$ (283,957)	(73,011)
Increase (Decrease) in Stockholders' Equity
Net income	19,411				19,411
Other comprehensive income (loss)	(20,963)							(20,963)
Issuance of common stock pursuant to stock-based compensation plans (shares)			61
Employee shares withheld for taxes (shares)							29
Employee shares withheld for taxes	(1,175)						$ (1,175)
Repurchases of common stock (shares)							4,525
Repurchases of common stock	(175,687)						$ (175,687)
Stock-based compensation expense	4,287			4,287
Balance (shares) at Sep. 30, 2021			109,568				14,992
Balance at Sep. 30, 2021	$ 1,348,756		$ 1,096	1,191,817	710,636		$ (460,819)	(93,974)
Balance (shares) at Jun. 30, 2021	109,507		109,507				10,438
Balance at Jun. 30, 2021	$ 1,522,883		$ 1,096	1,187,530	691,225		$ (283,957)	(73,011)
Increase (Decrease) in Stockholders' Equity
Net income	$ 50,300
Balance (shares) at Dec. 31, 2021	111,004		111,004				17,673
Balance at Dec. 31, 2021	$ 1,263,856		$ 1,110	1,195,959	741,525		$ (580,508)	(94,230)
Balance (shares) at Sep. 30, 2021			109,568				14,992
Balance at Sep. 30, 2021	1,348,756		$ 1,096	1,191,817	710,636		$ (460,819)	(93,974)
Increase (Decrease) in Stockholders' Equity
Net income	30,889				30,889
Other comprehensive income (loss)	(256)							(256)
Issuance of common stock pursuant to stock-based compensation plans (shares)			1,436
Issuance of common stock pursuant to stock-based compensation plans	0		$ 14	(14)
Employee shares withheld for taxes (shares)							654
Employee shares withheld for taxes	(29,858)						$ (29,858)
Repurchases of common stock (shares)							2,027
Repurchases of common stock	(89,831)						$ (89,831)
Stock-based compensation expense	$ 4,156			4,156
Balance (shares) at Dec. 31, 2021	111,004		111,004				17,673
Balance at Dec. 31, 2021	$ 1,263,856		$ 1,110	$ 1,195,959	$ 741,525		$ (580,508)	$ (94,230)