Segment Information (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012 segment	Sep. 30, 2011
Segment Reporting Information [Line Items]
Operating Income	$ 26,215	$ 31,627
Number of reportable segments	2
North American Distribution [Member]
Segment Reporting Information [Line Items]
Operating Income	24,983	29,274
Number of customers	14,500
International Distribution [Member]
Segment Reporting Information [Line Items]
Operating Income	1,232	2,353
Number of customers	15,500
Customer Concentration Risk [Member] | Maximum [Member] | North American Distribution [Member]
Segment Reporting Information [Line Items]
Concentration risk percentage	5.00%	5.00%
Customer Concentration Risk [Member] | Maximum [Member] | International Distribution [Member]
Segment Reporting Information [Line Items]
Concentration risk percentage	1.00%	1.00%
Restatement Adjustment [Member] | North American Distribution [Member]
Segment Reporting Information [Line Items]
Operating Income		900
Restatement Adjustment [Member] | International Distribution [Member]
Segment Reporting Information [Line Items]
Operating Income		(900)
Scenario, Previously Reported [Member] | North American Distribution [Member]
Segment Reporting Information [Line Items]
Operating Income		28,400
Scenario, Previously Reported [Member] | International Distribution [Member]
Segment Reporting Information [Line Items]
Operating Income		$ 3,200