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Goodwill and other intangible assets (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and other intangible assets

Schedule of changes in carrying amount of goodwill


		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2020			2019			2020			2019

		(in thousands)
Goodwill, beginning of period		$	539,818		$	529,145		$	539,818		$	501,145
Goodwill acquired			—			10,673			—			38,673
Goodwill, end of period		$	539,818		$	539,818		$	539,818		$	539,818

Schedule of gross carrying amount and accumulated amortization of intangible assets other than goodwill


													Weighted‑
													Average
							Accumulated			Net Carrying			Remaining
		Useful Life		Gross Value			Amortization			Value			Useful Life

				(in thousands)
Trademarks		1‑8 years		$	34,320		$	9,167		$	25,153		5.8 years
Customer relationships		2‑12 years			214,320			37,564			176,756		9.7 years
Developed technology		5 years			53,560			20,419			33,141		3.2 years
Non‑competes		2 years			90			41			49		1.1 years
Balance, December 31, 2019				$	302,290		$	67,191		$	235,099
Trademarks		8 years		$	34,320		$	12,383		$	21,937		5.1 years
Customer relationships		2‑12 years			214,320			51,259			163,061		9.0 years
Developed technology		5 years			53,560			28,453			25,107		2.4 years
Non‑competes		2 years			90			75			15		0.3 years
Balance, September 30, 2020				$	302,290		$	92,170		$	210,120