Condensed Consolidated Statement of Shareholders' Equity (Unaudited) - 6 months ended Dec. 31, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock
Beginning Balance at Jun. 30, 2017	$ 900,563	$ 269,638	$ (13,778)	$ 748,062	$ (103,359)
Beginning Balance, shares at Jun. 30, 2017		74,081			(10,940)
Shares issued under share-based compensation plans	3,176	$ 6,784			$ (3,608)
Shares issued under share-based compensation plans (in shares)		736			(99)
Shares acquired in satisfaction of minimum tax withholding obligations	(274)	$ (274)
Net earnings	30,737			30,737
Purchases of treasury stock	(49,875)				$ (49,875)
Purchases of treasury stock, shares					(1,415)
Treasury stock under deferred compensation arrangements		126			$ (126)
Foreign currency translation adjustments	15,182		15,182
Equity portion of convertible debt, net of issuance costs of $1,694	56,406	56,406
Share-based compensation expense	7,868	7,868
Amortization of net actuarial gains and losses, net of taxes of $32	118		118
Ending Balance at Dec. 31, 2017	$ 963,901	$ 340,548	$ 1,522	$ 778,799	$ (156,968)
Ending Balance, shares at Dec. 31, 2017		74,817			(12,454)