Consolidated Statement of Changes in Stockholders' Equity (Deficit) - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member] Class A Common Stock [Member]	Common Stock [Member] Class B Common Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning balance at Dec. 31, 2020	$ 378,586		$ 4	$ 3	$ 474,669		$ (93,293)		$ (2,797)
Beginning balance (in shares) at Dec. 31, 2020			44,216	30,111
Net Income (Loss)	(8,794)						(8,794)
Issuance of common stock in private placement, net of issuance costs	199,872		$ 1		199,871
Issuance of common stock in private placement, net of issuance costs (in shares)			2,936
Issuance of common stock for acquisitions	3,690				3,690
Issuance of common stock for acquisitions (in shares)			155
Exercise of stock options	2,262				2,262
Exercise of stock options (in shares)			1,478
Vesting of restricted stock (in shares)			373
Conversion from Class B to Class A common stock			2,366	(2,366)
Stock-based compensation	43,734				43,734
Foreign currency translation, net of tax	(7,254)								(7,254)
Retirement related benefit plans, net of tax	1,101								1,101
Ending balance at Dec. 31, 2021	613,197		$ 5	$ 3	724,226		(102,087)		(8,950)
Ending balance (in shares) at Dec. 31, 2021			51,524	27,745
Net Income (Loss)	(43,429)						(43,429)
Settlement of convertible senior notes	(29,756)				(29,756)
Repurchase and retirement of common stock, Shares			(461)
Repurchase and retirement of common stock					(21,658)
Reclassification of mezzanine equity to permanent equity	784				784
Issuance of common stock for acquisitions	224				224
Issuance of common stock for acquisitions (in shares)			111
Issuance of common stock for employee stock purchase program (in shares)			185
Issuance of common stock for employee stock purchase program	8,723				8,723
Exercise of stock options	3,577				3,577
Exercise of stock options (in shares)			440
Vesting of restricted stock (in shares)			478
Stock-based compensation	85,196				85,196
Foreign currency translation, net of tax	(24,084)								(24,084)
Retirement related benefit plans, net of tax	3,032								3,032
Ending balance at Dec. 31, 2022	569,736	$ (26,070)	$ 5	$ 3	721,307	$ (50,009)	(121,577)	$ 23,939	(30,002)
Ending balance (in shares) at Dec. 31, 2022			52,277	27,745
Net Income (Loss)	(8,926)						(8,926)
Repurchase and retirement of common stock, Shares			(91)
Repurchase and retirement of common stock	(4,256)				4,256
Issuance of common stock for acquisitions	17,570				17,570
Issuance of common stock for acquisitions (in shares)			349
Issuance of common stock for employee stock purchase program (in shares)			183
Issuance of common stock for employee stock purchase program	7,793				7,793
Exercise of stock options	36,140				36,140
Exercise of stock options (in shares)			1,052
Vesting of restricted stock (in shares)			539
Conversion from Class B to Class A common stock			931	(931)
Stock-based compensation	85,581				85,581
Foreign currency translation, net of tax	9,011								9,011
Retirement related benefit plans, net of tax	(1,318)								(1,318)
Ending balance at Dec. 31, 2023	$ 711,331		$ 5	$ 3	$ 864,135		$ (130,503)		$ (22,309)
Ending balance (in shares) at Dec. 31, 2023			55,240	26,814