Business Segment Data - Schedule of Sales Long-Lived and Net Assets by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended												12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Net sales	$ 1,444,419	$ 1,404,235	$ 1,328,024	$ 1,171,805	$ 1,182,235	$ 1,061,772	$ 1,055,642	$ 998,193	$ 1,090,771	$ 1,095,675	$ 1,127,029	$ 1,050,603	$ 5,348,483	$ 4,297,842	$ 4,364,078
Long-lived assets	691,887				485,296								691,887	485,296
Net Assets	1,793,021				1,644,871								1,793,021	1,644,871
Operating Segments [Member] | U.S. [Member]
Segment Reporting Information [Line Items]
Net sales													1,626,814	1,181,113	966,955
Long-lived assets	339,226				169,311								339,226	169,311
Net Assets	124,339				148,056								124,339	148,056
Operating Segments [Member] | Germany [Member]
Segment Reporting Information [Line Items]
Net sales													1,722,739	1,482,036	1,662,432
Long-lived assets	141,987				137,387								141,987	137,387
Net Assets	563,972				499,490								563,972	499,490
Operating Segments [Member] | Other Europe [Member]
Segment Reporting Information [Line Items]
Net sales													969,021	819,074	916,813
Long-lived assets	141,481				128,457								141,481	128,457
Net Assets	950,027				857,487								950,027	857,487
Operating Segments [Member] | Other [Member]
Segment Reporting Information [Line Items]
Net sales													1,029,909	815,619	817,878
Long-lived assets	69,193				50,141								69,193	50,141
Net Assets	$ 154,683				$ 139,838								$ 154,683	$ 139,838