Segment Reporting - Revenue from Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Segment Reporting Information [Line Items]
Net sales	$ 275,896	$ 240,178	$ 249,915	$ 247,885	$ 260,303	$ 234,288	$ 240,813	$ 207,178	$ 1,013,874	$ 942,582	$ 721,438
United States [Member]
Segment Reporting Information [Line Items]
Net sales									589,709	549,755	433,618
Europe [Member]
Segment Reporting Information [Line Items]
Net sales									221,373	201,518	156,268
Asia [Member]
Segment Reporting Information [Line Items]
Net sales									175,980	159,457	106,973
Other [Member]
Segment Reporting Information [Line Items]
Net sales									$ 26,812	$ 31,852	$ 24,579