Intangible Assets (Summary of Intangible Assets) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Schedule Of Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 14,775	$ 14,999
Accumulated Amortization	(6,314)	(5,157)
Finite-lived intangible assets, net	8,461	9,842
Net Carrying Amount, Intangible Assets	$ 600,394	634,827
Minimum [Member]
Schedule Of Finite Lived Intangible Assets [Line Items]
Useful Lives	2 years
Maximum
Schedule Of Finite Lived Intangible Assets [Line Items]
Useful Lives	15 years
Trademarks [Member]
Schedule Of Finite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets	$ 591,933	624,985
Trademarks [Member]
Schedule Of Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	12,480	12,438
Accumulated Amortization	(4,056)	(2,689)
Finite-lived intangible assets, net	$ 8,424	$ 9,749
Trademarks [Member] | Minimum [Member]
Schedule Of Finite Lived Intangible Assets [Line Items]
Useful Lives	5 years	5 years
Trademarks [Member] | Maximum
Schedule Of Finite Lived Intangible Assets [Line Items]
Useful Lives	15 years	15 years
Customer Contracts [Member]
Schedule Of Finite Lived Intangible Assets [Line Items]
Useful Lives	4 years	4 years
Gross Carrying Amount	$ 2,200	$ 2,200
Accumulated Amortization	(2,196)	(2,147)
Finite-lived intangible assets, net	$ 4	$ 53
Patents [Member]
Schedule Of Finite Lived Intangible Assets [Line Items]
Useful Lives	10 years	10 years
Gross Carrying Amount	$ 95	$ 361
Accumulated Amortization	(62)	(321)
Finite-lived intangible assets, net	$ 33	$ 40