Goodwill and Other Intangible Assets, Net (Tables)

9 Months Ended

Sep. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Reconciliation of the Change in the Carrying Value of Goodwill

A summary of the change in the carrying amount of goodwill by reportable segment is as follows:

	Diversified Industrial		Energy		Financial Services		Corporate and Other		Total
Balance as of December 31, 2021
Gross goodwill	$	180,347	$	67,143	$	6,515	$	81	$	254,086
Accumulated impairments	(41,278)		(64,790)		—		—		(106,068)
Net goodwill	139,069		2,353		6,515		81		148,018
Acquisition(b)	—		—		2,538		—		2,538
Divestiture(a)	(25,157)		—		—		—		(25,157)
Currency translation adjustments	(31)		—		—		—		(31)
Balance as of September 30, 2022
Gross goodwill	155,159		67,143		9,053		81		231,436
Accumulated impairments	(41,278)		(64,790)		—		—		(106,068)
Net goodwill	$	113,881	$	2,353	$	9,053	$	81	$	125,368

(a)    Related to the divestiture of the SLPE business. See Note 4 - "Acquisition and Divestitures."

(b)    Related to the acquisition of Security Premium Finance. See Note 4 - "Acquisition and Divestitures."

Summary of Intangible Assets

A summary of Other intangible assets, net is as follows:

	September 30, 2022						December 31, 2021
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Customer relationships	$	191,275	$	129,408	$	61,867	$	212,589	$	134,876	$	77,713
Trademarks, trade names and brand names	46,577		21,332		25,245		50,477		21,516		28,961
Developed technology, patents and patent applications	32,611		22,827		9,784		32,554		21,519		11,035
Other	16,553		15,090		1,463		18,766		16,645		2,121
Total	$	287,016	$	188,657	$	98,359	$	314,386	$	194,556	$	119,830

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Based on gross carrying amounts at September 30, 2022, the Company's estimate of amortization expense for identifiable intangible assets for the years ending December 31, 2022 through 2026 is presented in the table below.

	Year Ending December 31,
	2022	2023	2024	2025	2026
Estimated amortization expense	15,224	14,220	13,649	12,237	10,196