Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Intangible assets
Gross Carrying Amount	$ 350,347		$ 350,347		$ 237,567
Accumulated Amortization	(79,998)		(79,998)		(66,247)
Intangible assets, net	270,349		270,349		171,320
Amortization expense of intangible assets	6,700	$ 4,600	13,800	$ 13,500
Tradename
Intangible assets
Gross Carrying Amount	38,920		38,920		20,440
Accumulated Amortization	(22,767)		(22,767)		(19,675)
Intangible assets, net	16,153		16,153		765
Customer relationships
Intangible assets
Gross Carrying Amount	309,527		309,527		215,227
Accumulated Amortization	(55,331)		(55,331)		(44,727)
Intangible assets, net	254,196		254,196		170,500
Non-compete agreements
Intangible assets
Gross Carrying Amount	1,900		1,900		1,900
Accumulated Amortization	$ (1,900)		$ (1,900)		(1,845)
Intangible assets, net					$ 55

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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