Goodwill and Other Intangibles - Narrative (Details)	Jun. 30, 2017
Goodwill [Line Items]
Fair value in excess of carrying amount as a percent	20.00%
Minimum
Goodwill [Line Items]
Fair value in excess of carrying amount as a percent	6.00%
Effect 0.5% change in discount rate on fair value in excess of carrying amount	3.00%
Maximum
Goodwill [Line Items]
Fair value in excess of carrying amount as a percent	10.00%
Effect 0.5% change in discount rate on fair value in excess of carrying amount	15.00%
Plastics
Goodwill [Line Items]
Fair value in excess of carrying amount as a percent	2.00%