Litigation Summary (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2015 USD ($)	Jun. 30, 2015 action customer	Apr. 30, 2015 USD ($)	Dec. 31, 2013 USD ($)	Sep. 30, 2013 USD ($)
Employment class Actions
Number of class actions | action		3
Number of customers against whom class actions are filed | customer		1
Glucosamine-Based Dietary Supplements
Employment class Actions
Provision as per best estimate				$ 6,100	$ 12,000
Potential payments under settlement agreement, maximum			$ 9,000
Additional charges	$ 4,300