Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Total
Balance at the beginning of period at Jun. 30, 2023	$ 822	$ 568,761	$ 2,403,750	$ (2,227)	$ (1,513,770)	$ 1,457,336
Balance at the beginning of period (in shares) at Jun. 30, 2023	82,232
Balance at the beginning of period (in shares) at Jun. 30, 2023					39,922
Net income			87,358			87,358
Stock-based compensation		19,405				19,405
Net activity from stock-based compensation awards	$ 9	15,402			$ (6,600)	8,811
Net activity from stock-based compensation awards (in shares)	868				147
Proceeds from stock issued under Colleague Stock Purchase Plan		103	(18)		$ 562	647
Proceeds from stock issued under Colleague Stock Purchase Plan (in shares)					(15)
Repurchases of common stock for treasury					$ (252,594)	(252,594)
Repurchases of common stock for treasury (in shares)					5,281
Balance at the end of period at Mar. 31, 2024	$ 831	603,671	2,491,090	(2,227)	$ (1,772,402)	1,320,963
Balance at the end of period (in shares) at Mar. 31, 2024	83,100
Balance at the end of period (in shares) at Mar. 31, 2024					45,335
Balance at the beginning of period at Dec. 31, 2023	$ 831	597,587	2,454,269	(2,227)	$ (1,681,061)	1,369,399
Balance at the beginning of period (in shares) at Dec. 31, 2023	83,092
Balance at the beginning of period (in shares) at Dec. 31, 2023					43,566
Net income			36,821			36,821
Stock-based compensation		5,900				5,900
Net activity from stock-based compensation awards		98			$ (95)	3
Net activity from stock-based compensation awards (in shares)	8				2
Proceeds from stock issued under Colleague Stock Purchase Plan		86			$ 162	248
Proceeds from stock issued under Colleague Stock Purchase Plan (in shares)					(5)
Repurchases of common stock for treasury					$ (91,408)	(91,408)
Repurchases of common stock for treasury (in shares)					1,772
Balance at the end of period at Mar. 31, 2024	$ 831	603,671	2,491,090	(2,227)	$ (1,772,402)	1,320,963
Balance at the end of period (in shares) at Mar. 31, 2024	83,100
Balance at the end of period (in shares) at Mar. 31, 2024					45,335
Balance at the beginning of period at Jun. 30, 2024	$ 832	611,949	2,540,509	(2,227)	$ (1,781,928)	$ 1,369,135
Balance at the beginning of period (in shares) at Jun. 30, 2024	83,194					37,681
Balance at the beginning of period (in shares) at Jun. 30, 2024					45,513	45,513
Net income			182,853			$ 182,853
Stock-based compensation		31,181				31,181
Net activity from stock-based compensation awards	$ 7	10,001			$ (12,457)	(2,449)
Net activity from stock-based compensation awards (in shares)	705				162
Proceeds from stock issued under Colleague Stock Purchase Plan		504			$ 521	1,025
Proceeds from stock issued under Colleague Stock Purchase Plan (in shares)					(13)
Repurchases of common stock for treasury					$ (149,032)	(149,032)
Repurchases of common stock for treasury (in shares)					1,725
Balance at the end of period at Mar. 31, 2025	$ 839	653,635	2,723,362	(2,227)	$ (1,942,896)	$ 1,432,713
Balance at the end of period (in shares) at Mar. 31, 2025	83,899					36,512
Balance at the end of period (in shares) at Mar. 31, 2025					47,387	47,387
Balance at the beginning of period at Dec. 31, 2024	$ 839	642,975	2,662,530	(2,227)	$ (1,865,207)	$ 1,438,910
Balance at the beginning of period (in shares) at Dec. 31, 2024	83,886
Balance at the beginning of period (in shares) at Dec. 31, 2024					46,597
Net income			60,832			60,832
Stock-based compensation		10,263				10,263
Net activity from stock-based compensation awards		175			$ (259)	(84)
Net activity from stock-based compensation awards (in shares)	13				2
Proceeds from stock issued under Colleague Stock Purchase Plan		222			$ 173	395
Proceeds from stock issued under Colleague Stock Purchase Plan (in shares)					(4)
Repurchases of common stock for treasury					$ (77,603)	(77,603)
Repurchases of common stock for treasury (in shares)					792
Balance at the end of period at Mar. 31, 2025	$ 839	$ 653,635	$ 2,723,362	$ (2,227)	$ (1,942,896)	$ 1,432,713
Balance at the end of period (in shares) at Mar. 31, 2025	83,899					36,512
Balance at the end of period (in shares) at Mar. 31, 2025					47,387	47,387