Earnings per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Net earnings	$ 113,541	$ 123,650	$ 104,372
Basic average shares outstanding	44,636,000	44,455,000	44,825,000
Dilutive effect of stock options and equivalents	774,000	630,000	275,000
Diluted average shares outstanding	45,410,000	45,085,000	45,100,000
Earnings per share
Basic (in usd per share)	$ 2.54	$ 2.78	$ 2.33
Diluted (in usd per share)	$ 2.50	$ 2.74	$ 2.31
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities, shares	1,800,000	3,100,000	4,200,000
Antidilutive securities, weighted average exercise price	$ 50.54	$ 46.56	$ 42.66