Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net earnings	$ 95,274	$ 65,486	$ 65,975
Other comprehensive income (loss):
Foreign currency translation adjustments	(2,275)	(15,651)	(8,497)
Pension adjustment, net of taxes of $674, ($1,886), and $($602) for the years ended June 30, 2017, 2016, and 2015, respectively	2,514	(7,031)	(2,244)
Other comprehensive income (loss)	239	(22,682)	(10,741)
Comprehensive income	$ 95,513	$ 42,804	$ 55,234