Goodwill and Other Intangible Assets

Goodwill and other intangible assets, net of accumulated amortization, at March 31, 2019 and December 31, 2018 are as follows (in thousands):



	March 31, 2019		December 31, 2018
Goodwill	$	646,453	$	647,077
Other intangible assets, net	859,961		870,517
Total goodwill and other intangible assets, net	$	1,506,414	$	1,517,594

Additions to goodwill and other intangible assets in 2018 relate to the acquisition of Boat Holdings in July 2018. The aggregate purchase price was allocated on a preliminary basis to the assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition. Boat Holding’s financial results are included in the Company’s consolidated results from the date of acquisition. As of March 31, 2019, the purchase price allocation remains preliminary. The pro forma financial results and the preliminary purchase price allocation are included in Note 3. There were no material additions to goodwill and other intangible assets for the three months ended March 31, 2019.

The changes in the carrying amount of goodwill for the three months ended March 31, 2019 were as follows (in thousands):



	Three months ended March 31, 2019
Goodwill, beginning of period	$	647,077
Goodwill adjustments related to businesses acquired	490
Currency translation effect on foreign goodwill balances	(1,114		)
Goodwill, end of period	$	646,453

The components of other intangible assets were as follows (in thousands):



	Total estimated life (years)	March 31, 2019			December 31, 2018
Non-amortizable—indefinite lived:
Brand/trade names		$	442,051		$	442,299
Amortizable:
Non-compete agreements	4	2,630			2,630
Dealer/customer related	5-20	505,183			506,401
Developed technology	5-7	13,279			13,323
Total amortizable		521,092			522,354
Less: Accumulated amortization		(103,182		)	(94,136		)
Net amortized other intangible assets		417,910			428,218
Total other intangible assets, net		$	859,961		$	870,517

Amortization expense for intangible assets for the three months ended March 31, 2019 and 2018 was $10,247,000 and $6,126,000, respectively. Estimated amortization expense for the remainder of 2019 through 2024 is as follows: 2019 (remainder), $30,630,000; 2020, $35,820,000; 2021, $33,050,000; 2022, $28,070,000; 2023, $25,540,000; 2024, $25,010,000; and after 2024, $239,790,000. The preceding expected amortization expense is an estimate and actual amounts could differ due to additional intangible asset acquisitions, changes in foreign currency rates or impairment of intangible assets.