Segment Information (Financial Information by Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Sales	$ 747,716	$ 782,684	$ 1,481,320	$ 1,552,943
Depreciation and amortization	2,275	2,258	4,589	4,840
Operating Income	24,425	32,087	50,640	63,715
Capital expenditures	1,198	3,174	3,204	5,513
North American Distribution [Member]
Segment Reporting Information [Line Items]
Sales	562,317	574,475	1,127,615	1,158,058
Depreciation and amortization	961	999	1,970	2,042
Operating Income	23,259	26,756	48,243	56,030
Capital expenditures	833	2,137	2,722	4,328
International Distribution [Member]
Segment Reporting Information [Line Items]
Sales	199,729	219,761	387,521	416,548
Depreciation and amortization	1,314	1,259	2,619	2,798
Operating Income	1,166	5,331	2,397	7,685
Capital expenditures	365	1,037	482	1,185
Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Sales	$ (14,330)	$ (11,552)	$ (33,816)	$ (21,663)