Goodwill and other intangible assets - Schedule of Gross Carrying Amount and Accumulated Amortization of Intangible Assets Other Than Goodwill (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 372,014	$ 383,554
Accumulated Amortization	196,830	188,328
Foreign Currency Translation	(7,405)	(7,335)
Total intangible assets	$ 167,779	187,891
Trademarks
Finite-Lived Intangible Assets [Line Items]
Useful Life	8 years
Gross Carrying Value	$ 34,300	34,700
Accumulated Amortization	28,440	26,630
Foreign Currency Translation	0	(35)
Total intangible assets	$ 5,860	$ 8,035
Weighted‑ Average Remaining Useful Life	1 year 3 months 18 days	1 year 9 months 18 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 257,308	$ 257,308
Accumulated Amortization	130,737	119,396
Foreign Currency Translation	(1,923)	(1,781)
Total intangible assets	$ 124,648	$ 136,131
Weighted‑ Average Remaining Useful Life	5 years 9 months 18 days	6 years 2 months 12 days
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 78,787	$ 84,647
Accumulated Amortization	36,900	36,235
Foreign Currency Translation	(5,469)	(5,148)
Total intangible assets	$ 36,418	$ 43,264
Weighted‑ Average Remaining Useful Life	3 years 6 months	3 years 10 months 24 days
Non‑competes
Finite-Lived Intangible Assets [Line Items]
Useful Life	3 years
Gross Carrying Value	$ 1,349	$ 3,099
Accumulated Amortization	742	2,267
Foreign Currency Translation	(13)	(172)
Total intangible assets	$ 594	$ 660
Weighted‑ Average Remaining Useful Life	1 year 3 months 18 days	1 year 9 months 18 days
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years
Gross Carrying Value	$ 270
Accumulated Amortization	11
Foreign Currency Translation	0
Total intangible assets	$ 259
Weighted‑ Average Remaining Useful Life	4 years 6 months
Order backlog
Finite-Lived Intangible Assets [Line Items]
Useful Life		2 years 6 months
Gross Carrying Value		$ 3,800
Accumulated Amortization		3,800
Foreign Currency Translation		(199)
Total intangible assets		$ (199)
Weighted‑ Average Remaining Useful Life		0 years
Minimum | Trademarks
Finite-Lived Intangible Assets [Line Items]
Useful Life		3 years
Minimum | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years	5 years
Minimum | Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Life	5 years	5 years
Minimum | Non‑competes
Finite-Lived Intangible Assets [Line Items]
Useful Life		2 years 6 months
Maximum | Trademarks
Finite-Lived Intangible Assets [Line Items]
Useful Life		8 years
Maximum | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Useful Life	12 years	12 years
Maximum | Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Life	6 years 6 months	6 years 6 months
Maximum | Non‑competes
Finite-Lived Intangible Assets [Line Items]
Useful Life		3 years