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Equity Method Investments - Operating Results (Details) - ICP - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017
ICP’s Operating results:
Net sales	$ 0	$ 78,062
Cost of sales and expenses	0	79,224
Net loss	$ 0	$ (1,162)

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