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Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill for the years ended December 31, 2021 and 2020 is summarized as follows:

						Ecoservices						Catalyst Technologies						Total
Balance as of December 31, 2019						$	311,892					$	78,611					$	390,503
Foreign exchange impact						—						1,062						1,062
Balance as of December 31, 2020						311,892						79,673						391,565
Goodwill recognized (Note 6)						14,778						—						14,778
Foreign exchange impact						—						(204)						(204)
Balance as of December 31, 2021						$	326,670					$	79,469					$	406,139

Schedule of Finite-Lived Intangible Assets

Gross carrying amounts and accumulated amortization for intangible assets other than goodwill are as follows:

			December 31, 2021												December 31, 2020
			Gross Carrying Amount			Accumulated Amortization									Net Balance						Gross Carrying Amount			Accumulated Amortization									Net Balance
Technical know-how			$	55,922		$	(20,648)								$	35,274					$	52,214		$	(17,211)								$	35,003
Customer relationships			131,248			(57,262)									73,986						115,303			(47,740)									67,563
Non-compete agreements			700			(117)									583						—			—									—
Trademarks			7,682			(2,902)									4,780						7,709			(2,399)									5,310
Trade names			1,600			(133)									1,467						—			—									—
Permits			9,100			(9,100)									—						9,100			(9,100)									—
Total definite-lived intangible assets			206,252			(90,162)									116,090						184,326			(76,450)									107,876
Indefinite-lived trade names			25,627			—									25,627						25,670			—									25,670
In-process research and development			3,900			—									3,900						3,900			—									3,900
Total intangible assets			$	235,779		$	(90,162)								$	145,617					$	213,896		$	(76,450)								$	137,446

Schedule of Indefinite-Lived Intangible Assets

Gross carrying amounts and accumulated amortization for intangible assets other than goodwill are as follows:

			December 31, 2021												December 31, 2020
			Gross Carrying Amount			Accumulated Amortization									Net Balance						Gross Carrying Amount			Accumulated Amortization									Net Balance
Technical know-how			$	55,922		$	(20,648)								$	35,274					$	52,214		$	(17,211)								$	35,003
Customer relationships			131,248			(57,262)									73,986						115,303			(47,740)									67,563
Non-compete agreements			700			(117)									583						—			—									—
Trademarks			7,682			(2,902)									4,780						7,709			(2,399)									5,310
Trade names			1,600			(133)									1,467						—			—									—
Permits			9,100			(9,100)									—						9,100			(9,100)									—
Total definite-lived intangible assets			206,252			(90,162)									116,090						184,326			(76,450)									107,876
Indefinite-lived trade names			25,627			—									25,627						25,670			—									25,670
In-process research and development			3,900			—									3,900						3,900			—									3,900
Total intangible assets			$	235,779		$	(90,162)								$	145,617					$	213,896		$	(76,450)								$	137,446

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Estimated future aggregate amortization expense of intangible assets is as follows:

Year						Amount
2022						$	14,129
2023						14,129
2024						14,129
2025						14,129
2026						12,955
Thereafter						46,627
Total estimated future aggregate amortization expense						$	116,098

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