Goodwill and Intangible Assets, Net, Intangible Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 1,500	$ 1,700	$ 4,960	$ 4,500
Acquired finite-lived intangible assets, weighted average useful life			6 years 3 months 18 days
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount	67,364	59,685	$ 67,364	59,685	$ 67,127
Accumulated amortization	(45,287)	(38,721)	(45,287)	(38,721)	(40,327)
Net carrying amount	22,077	20,964	22,077	20,964	26,800
North America
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount	41,003	33,755	41,003	33,755	40,786
Accumulated amortization	(25,563)	(21,761)	(25,563)	(21,761)	(22,697)
Net carrying amount	15,440	11,994	15,440	11,994	18,089
Europe
Changes in gross carrying amount of finite-lived intangible assets
Gross carrying amount	26,361	25,930	26,361	25,930	26,341
Accumulated amortization	(19,724)	(16,960)	(19,724)	(16,960)	(17,630)
Net carrying amount	$ 6,637	$ 8,970	$ 6,637	$ 8,970	$ 8,711