Goodwill and other intangible assets - Intangible assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Value	$ 405,920,000	$ 303,401,000
Accumulated Amortization	141,727,000	100,523,000
Net Carrying Value	264,193,000	202,878,000
Net Carrying Value	264,193,000	202,878,000
Gross Value	406,320,000
Net Carrying Value	264,593,000	202,878,000
Foreign currency translation adjustment	(2,100,000)
Amortization expense	41,300,000	33,300,000	$ 32,700,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2022	47,303,000
2023	39,517,000
2024	35,984,000
2025	34,859,000
2026	30,538,000
Thereafter	75,992,000
Goodwill and intangible asset impairment	$ 0	$ 0	$ 0
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	2 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	12 years
IPR&D
Finite-Lived Intangible Assets [Line Items]
Indefinite	$ 400,000
Trademarks
Finite-Lived Intangible Assets [Line Items]
Useful Life		8 years
Gross Value	34,690,000	$ 34,320,000
Accumulated Amortization	17,788,000	13,454,000
Net Carrying Value	$ 16,902,000	$ 20,866,000
Weighted‑ Average Remaining Useful Life	3 years 9 months 18 days	4 years 9 months 18 days
Net Carrying Value	$ 16,902,000	$ 20,866,000
Trademarks | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	3 years
Trademarks | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	8 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Value	$ 249,495,000	214,428,000
Accumulated Amortization	75,600,000	55,810,000
Net Carrying Value	$ 173,895,000	$ 158,618,000
Weighted‑ Average Remaining Useful Life	8 years 3 months 18 days	8 years 8 months 12 days
Net Carrying Value	$ 173,895,000	$ 158,618,000
Customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	2 years	2 years
Customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	12 years	12 years
Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Life		5 years
Gross Value	$ 116,193,000	$ 54,563,000
Accumulated Amortization	47,142,000	31,173,000
Net Carrying Value	$ 69,051,000	$ 23,390,000
Weighted‑ Average Remaining Useful Life	5 years 1 month 6 days	2 years 3 months 18 days
Net Carrying Value	$ 69,051,000	$ 23,390,000
Developed technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years
Developed technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	6 years 6 months
Non-competes
Finite-Lived Intangible Assets [Line Items]
Useful Life		2 years
Gross Value	$ 1,797,000	$ 90,000
Accumulated Amortization	439,000	86,000
Net Carrying Value	$ 1,358,000	$ 4,000
Weighted‑ Average Remaining Useful Life	2 years	1 month 6 days
Net Carrying Value	$ 1,358,000	$ 4,000
Non-competes | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life	2 years
Non-competes | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life	2 years 6 months
Order backlog
Finite-Lived Intangible Assets [Line Items]
Useful Life	2 years 6 months
Gross Value	$ 3,745,000
Accumulated Amortization	758,000
Net Carrying Value	$ 2,987,000
Weighted‑ Average Remaining Useful Life	2 years
Net Carrying Value	$ 2,987,000