Business Combinations - Narrative (Details) - USD ($)							1 Months Ended				3 Months Ended		8 Months Ended	9 Months Ended		12 Months Ended
	Nov. 07, 2024	Sep. 27, 2024	Jan. 25, 2024	Sep. 18, 2023	Mar. 03, 2023	Feb. 21, 2023	Jul. 31, 2024	May 31, 2024	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Business Acquisition [Line Items]
Amortization of intangible assets											$ 9,324,000	$ 9,044,000		$ 25,616,000	$ 22,701,000
Kinetic
Business Acquisition [Line Items]
Payments to acquire productive assets			$ 3,200,000
Asset acquisition, contingent consideration, liability			4,599,000
Transaction cost														$ 352,000
Holdback period													18 months
Kinetic | Adjustment Holdback
Business Acquisition [Line Items]
Asset acquisition, contingent consideration, liability			500,000
Cash settlement							$ 500,000
Kinetic | Indemnity Holdback
Business Acquisition [Line Items]
Asset acquisition, contingent consideration, liability			800,000
Customer relationships
Business Acquisition [Line Items]
Weighted average remaining useful life											8 years 1 month 6 days		8 years 1 month 6 days	8 years 1 month 6 days		9 years 4 months 24 days
Backlog
Business Acquisition [Line Items]
Weighted average remaining useful life											10 months 24 days		10 months 24 days	10 months 24 days		1 year 2 months 12 days
Trade names
Business Acquisition [Line Items]
Weighted average remaining useful life											5 years 3 months 18 days		5 years 3 months 18 days	5 years 3 months 18 days		6 years
Subject to Achievement of Certain Production Based Milestones | Kinetic
Business Acquisition [Line Items]
Asset acquisition, contingent consideration, liability			$ 2,348,000
Asset acquisition, contingent consideration period			24 months
Subject to Achievement of Certain Revenue Based Milestones | Kinetic
Business Acquisition [Line Items]
Asset acquisition, contingent consideration, liability			$ 2,251,000
Asset acquisition, contingent consideration period			12 months
Subject to Working Capital of Certain Revenue Based Milestones | Kinetic
Business Acquisition [Line Items]
Asset acquisition, contingent consideration period			18 months
Asset acquisition, contingent consideration business days			5 days
Production Earnout | Kinetic
Business Acquisition [Line Items]
Production earnout, period			24 months
Revenue Earnout | Kinetic
Business Acquisition [Line Items]
Revenue threshold			$ 12,000,000
Achievement period			12 months
Contingent consideration, tranche one | Kinetic
Business Acquisition [Line Items]
Asset acquisition, contingent consideration, liability											$ 2,391,000		$ 2,391,000	$ 2,391,000
Contingent consideration, tranche two | Kinetic
Business Acquisition [Line Items]
Asset acquisition, contingent consideration, liability											1,840,000		1,840,000	1,840,000
Maximum | Production Earnout | Kinetic
Business Acquisition [Line Items]
Production earnout			$ 3,000,000
Maximum | Revenue Earnout | Kinetic
Business Acquisition [Line Items]
Revenue earnout			$ 2,500,000
Exalos
Business Acquisition [Line Items]
Total equity consideration									$ 45,291,000
Purchase price — contingent considerations				$ 13,225,000							9,755,000		9,755,000	9,755,000
Holdback amount				$ 2,500,000
Acquisition related costs														262,000		$ 621,000
Holdback period				12 months
Maximum payout				$ 20,000,000
Amortization of intangible assets											554,000
Exalos | Developed technology
Business Acquisition [Line Items]
Weighted average remaining useful life				10 years
Exalos | Customer relationships
Business Acquisition [Line Items]
Weighted average remaining useful life				7 years
Exalos | Backlog
Business Acquisition [Line Items]
Weighted average remaining useful life				2 years
Exalos | Trade names
Business Acquisition [Line Items]
Weighted average remaining useful life				7 years
Exalos | Contingent consideration, tranche one
Business Acquisition [Line Items]
Purchase price — contingent considerations											14,113,000		14,113,000	14,113,000		9,593,000
Maximum payout				$ 13,500,000
Revenue threshold				$ 19,000,000
Achievement period (in months)				12 months		12 months
Exalos | Contingent consideration, tranche two
Business Acquisition [Line Items]
Purchase price — contingent considerations											584,000		584,000	584,000		4,012,000
Maximum payout				$ 6,500,000
Revenue threshold				$ 21,000,000
Achievement period (in months)				12 months		12 months
Exalos | Convertible debt into Class A common shares
Business Acquisition [Line Items]
Equity interest issued or issuable (in shares)				6,613,786
Purchase price — contingent considerations				$ 9,755,000
Exalos | Common Stock | Equity Consideration Issued
Business Acquisition [Line Items]
Total equity consideration				$ 42,791,000					$ 42,791,000
Exalos | Common Stock | Contingent consideration, tranche one | Convertible debt into Class A common shares | Subsequent Event
Business Acquisition [Line Items]
Total equity consideration	$ 2,536,000
Stock issued due to acquisitions (in shares)	2,845,243
GEO
Business Acquisition [Line Items]
Total equity consideration										$ 96,535,000
Holdback amount											0		0	0
Gain due to holdback adjustment											48,000			48,000
GEO | Indemnity Holdback
Business Acquisition [Line Items]
Purchase price — contingent considerations											6,250,000		6,250,000	6,250,000		12,704,000
GEO | Convertible debt into Class A common shares
Business Acquisition [Line Items]
Equity interest issued or issuable (in shares)		610,975
Total equity consideration		$ 2,548,000
GEO | Contingent consideration, tranche one
Business Acquisition [Line Items]
Purchase price — contingent considerations																44,709,000
Revenue threshold					$ 20,000,000
Achievement period (in months)					12 months
GEO | Contingent consideration, tranche two
Business Acquisition [Line Items]
Purchase price — contingent considerations											$ 3,900,000		$ 3,900,000	$ 3,900,000		$ 25,921,000
Revenue threshold					$ 10,000,000
Achievement period (in months)					6 months
GEO | Common Stock | Equity Consideration Issued
Business Acquisition [Line Items]
Total equity consideration										$ 75,556,000
GEO | Common Stock | Contingent consideration, tranche one | Convertible debt into Class A common shares
Business Acquisition [Line Items]
Total equity consideration								$ 40,667,000
Stock issued due to acquisitions (in shares)								6,096,951