Consolidated Statement Of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Jun. 30, 2013	$ 1,170,659	$ 980	$ 768,284	$ 459,079	$ (30,225)	$ (27,459)
Beginning balance, shares at Jun. 30, 2013		98,044			2,672
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	129,922			129,922
Other comprehensive income (loss)	87,527					87,527
Issuance of common stock pursuant to compensation plans	15,090	$ 15	14,919		$ 156
Issuance of common stock pursuant to compensation plans, shares		1,539			(13)
Issuance of common stock in connection with acquisitions	159,521	$ 36	159,485
Issuance of common stock in connection with acquisitions, shares		3,560
Stock based compensation income tax effects	15,681		15,681
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares					247
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans	(10,023)				$ (10,023)
Stock based compensation expense	12,448		12,448
Ending balance at Jun. 30, 2014	$ 1,580,825	$ 1,031	970,817	589,001	$ (40,092)	60,068
Ending balance, shares at Jun. 30, 2014		103,143			2,906
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock split ratio	2
Stock dividend, percent	100.00%
Net income	$ 164,962			164,962
Other comprehensive income (loss)	(101,699)					(101,699)
Issuance of common stock pursuant to compensation plans	26,085	$ 20	26,065
Issuance of common stock pursuant to compensation plans, shares		1,968
Issuance of common stock in connection with acquisitions	34,136	$ 7	34,129
Issuance of common stock in connection with acquisitions, shares		730
Stock based compensation income tax effects	29,219		29,219
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares					323
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans	(18,058)				$ (18,058)
Stock based compensation expense	12,197		12,197
Ending balance at Jun. 30, 2015	$ 1,727,667	$ 1,058	1,072,427	753,963	$ (58,150)	(41,631)
Ending balance, shares at Jun. 30, 2015	105,841	105,841			3,229
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 47,429			47,429
Other comprehensive income (loss)	(130,480)					(130,480)
Issuance of common stock pursuant to compensation plans	4,400	$ 14	9,749		$ (5,363)
Issuance of common stock pursuant to compensation plans, shares		1,398			151
Issuance of common stock in connection with acquisitions	16,308	$ 3	16,305
Issuance of common stock in connection with acquisitions, shares		240
Stock based compensation income tax effects	12,037		12,037
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans, shares					638
Shares withheld for payment of employee payroll taxes due on shares issued under stock based compensation plans	(25,535)				$ (25,535)
Stock based compensation expense	12,688		12,688
Ending balance at Jun. 30, 2016	$ 1,664,514	$ 1,075	$ 1,123,206	$ 801,392	$ (89,048)	$ (172,111)
Ending balance, shares at Jun. 30, 2016	107,479	107,479			4,018