Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

Other intangible assets consisted of the following (in thousands):

	Estimated Useful Life (in years)			As of December 31,
				2018			2017
Indefinite-lived trademarks(1)	N/A			$	23,252		$	23,252
Definite-lived trademarks	5	to	15	2,850			2,600
Patents	7	to	24	14,243			15,187
Customer relationships	10	to	15	24,700			24,700
				65,045			65,739
Accumulated amortization - definite-lived intangible assets				(9,805		)	(7,996		)
				$	55,240		$	57,743

⁽¹⁾ During the fourth quarter of 2017, we identified impairment indicators in our Octane Fitness brand name originally acquired through the Octane Fitness acquisition on December 31, 2015. Ongoing weakness in the specialty retail channel, as a result of retailer consolidation, has had a negative impact on Octane branded sales and projected growth trends. We utilized the relief-from-royalty method to quantify the impairment, resulting in an $8.8 million non-cash impairment charge for 2017.

Amortization expense

Amortization expense was as follows (in thousands):

	Year Ended December 31,
	2018		2017		2016
Amortization expense	$	3,164	$	3,256	$	3,554

Other Intangible Assets

OTHER INTANGIBLE ASSETS

Other intangible assets consisted of the following (in thousands):

	Estimated Useful Life (in years)			As of December 31,
				2018			2017
Indefinite-lived trademarks(1)	N/A			$	23,252		$	23,252
Definite-lived trademarks	5	to	15	2,850			2,600
Patents	7	to	24	14,243			15,187
Customer relationships	10	to	15	24,700			24,700
				65,045			65,739
Accumulated amortization - definite-lived intangible assets				(9,805		)	(7,996		)
				$	55,240		$	57,743

⁽¹⁾ During the fourth quarter of 2017, we identified impairment indicators in our Octane Fitness brand name originally acquired through the Octane Fitness acquisition on December 31, 2015. Ongoing weakness in the specialty retail channel, as a result of retailer consolidation, has had a negative impact on Octane branded sales and projected growth trends. We utilized the relief-from-royalty method to quantify the impairment, resulting in an $8.8 million non-cash impairment charge for 2017.

Amortization expense was as follows (in thousands):

	Year Ended December 31,
	2018		2017		2016
Amortization expense	$	3,164	$	3,256	$	3,554

Future amortization of definite-lived intangible assets is as follows (in thousands):

2019	$	3,242
2020	3,217
2021	3,187
2022	3,187
2023	3,187
Thereafter	15,968
	$	31,988

Future amortization expense

Future amortization of definite-lived intangible assets is as follows (in thousands):

2019	$	3,242
2020	3,217
2021	3,187
2022	3,187
2023	3,187
Thereafter	15,968
	$	31,988