Business Segments - (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2016
Institutional Products Group
Segment Reporting Information [Line Items]
Impairment of finite-lived intangible assets	$ 13,041,000
Customer lists | Institutional Products Group
Segment Reporting Information [Line Items]
Impairment of finite-lived intangible assets	$ 12,826,000
Customer Concentration Risk | Net Sales
Segment Reporting Information [Line Items]
Maximum percent of revenue from single customer		3.40%