Segment Information (Net Sales) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Revenue from External Customer [Line Items]
Net Sales	$ 619,598	$ 632,720	$ 616,232	$ 589,219	$ 602,891	$ 588,798	$ 587,021	$ 564,795	$ 2,457,769	$ 2,343,505	$ 2,392,864
United States
Revenue from External Customer [Line Items]
Net Sales									1,144,832	1,167,688	1,237,240
United Kingdom
Revenue from External Customer [Line Items]
Net Sales									938,029	851,757	859,183
All Other
Revenue from External Customer [Line Items]
Net Sales									374,908	324,060	296,441
Grocery
Revenue from External Customer [Line Items]
Net Sales									1,842,535	1,743,860	1,800,640
Snacks
Revenue from External Customer [Line Items]
Net Sales									302,795	312,784	307,797
Personal Care
Revenue from External Customer [Line Items]
Net Sales									196,245	176,408	171,669
Tea
Revenue from External Customer [Line Items]
Net Sales									$ 116,194	$ 110,453	$ 112,758