Assets And Liabilities Held-For-Sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal group and goodwill and other intangible impairment charge	$ (29,013)	$ (72,008)	$ (29,013)	$ (72,008)
Current assets held-for-sale	29,054		29,054		$ 0
Current liabilities held-for-sale	14,214		14,214		0
Assets:
Total current assets held-for-sale	29,054		29,054		0
Liabilities:
Total current liabilities held-for-sale	14,214		14,214		$ 0
Octane Fitness
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group fair value, net of estimated costs to sell	14,800		14,800
Loss on disposal group and goodwill and other intangible impairment charge			29,000
Current assets held-for-sale	29,054		29,054
Current liabilities held-for-sale	14,214		14,214
Assets:
Cash and cash equivalents	3,986		3,986
Trade receivables	7,765		7,765
Inventories	11,538		11,538
Prepaids and other current assets	1,054		1,054
Property, plant and equipment, net	1,655		1,655
Other intangible assets	32,045		32,045
Loss on disposal group	(29,013)		(29,013)
Other assets	24		24
Total current assets held-for-sale	29,054		29,054
Liabilities:
Trade payables	8,997		8,997
Accrued liabilities	2,121		2,121
Warranty obligations	3,097		3,097
Income taxes payable	99		99
Other	(100)		(100)
Total current liabilities held-for-sale	$ 14,214		$ 14,214