Segment and Geographic Information (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Net sales are presented in geographic areas
Net Sales	$ 570,397	$ 529,517	$ 1,149,971	$ 1,057,018
United States [Member]
Net sales are presented in geographic areas
Net Sales	478,222	450,951	965,650	910,244
Canada [Member]
Net sales are presented in geographic areas
Net Sales	73,502	63,329	147,075	117,410
Mexico [Member]
Net sales are presented in geographic areas
Net Sales	$ 18,673	$ 15,237	$ 37,246	$ 29,364