Assets And Liabilities Held-For-Sale (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on disposal	$ (8,345)		$ 0	$ 20,668	$ 72,008
Current assets held-for-sale	28,701			28,701		$ 0
Current liabilities held-for-sale	9,710			9,710		0
Assets:
Total current assets held-for-sale	28,701			28,701		0
Liabilities:
Total current liabilities held-for-sale	9,710			9,710		$ 0
Octane Fitness
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (Loss) on disposal	(8,300)	$ (29,000)		(20,700)
Current assets held-for-sale	28,701			28,701
Current liabilities held-for-sale	9,710			9,710
Assets:
Cash and cash equivalents	108			108
Trade receivables	3,937			3,937
Inventories	10,703			10,703
Prepaids and other current assets	586			586
Property, plant and equipment, net	1,571			1,571
Other intangible assets	32,045			32,045
Loss on disposal group	(20,272)			(20,272)
Other assets	23			23
Total current assets held-for-sale	28,701			28,701
Liabilities:
Trade payables	4,659			4,659
Accrued liabilities	759			759
Warranty obligations	2,779			2,779
Deferred income tax liabilities	1,513			1,513
Total current liabilities held-for-sale	$ 9,710			$ 9,710