Closing of $150.0 Million Financing Transaction Non-Exclusive Sourcing Agreement (Details) (USD $)	0 Months Ended
	May 23, 2014
Long-term Purchase Commitment [Line Items]
Term of purchase obligation	10 years
Notice period of sourcing agreement termination	9 months
Minimum period before sourcing agreement can be terminated	3 years
Maximum
Long-term Purchase Commitment [Line Items]
Amount of guaranteed minimum product purchase commitment	$ 280,000,000
Minimum
Long-term Purchase Commitment [Line Items]
Amount of guaranteed minimum product purchase commitment	$ 240,000,000