Receivables (Schedule of Accounts Receivable) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Accounts Receivable [Abstract]
Accounts Receivable, Gross	$ 138,577	$ 146,482
Customer Rebate Reserve	(9,799)	(15,452)
Allowance for Doubtful Accounts Receivable	(4,969)	(5,268)
Cash Discount Reserves	(5,305)	(4,777)
Returns and Allowances Reserve	(1,316)	(1,242)
Accounts Receivable, Net	$ 117,188	$ 119,743

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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