Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue	$ 106,654	$ 91,452	$ 285,005	$ 259,536
Technology Sales
Disaggregation of Revenue [Line Items]
Revenue	19,360	26,305	51,726	54,629
Image Enhancement and Maintenance Services
Disaggregation of Revenue [Line Items]
Revenue	61,029	46,891	162,636	149,428
Technology Rentals
Disaggregation of Revenue [Line Items]
Revenue	23,336	16,122	61,763	48,766
Finance income
Disaggregation of Revenue [Line Items]
Revenue	2,929	2,134	8,880	6,713
Sub-total for reportable segments
Disaggregation of Revenue [Line Items]
Revenue	105,252	88,100	279,698	251,237
Sub-total for reportable segments | Technology Sales
Disaggregation of Revenue [Line Items]
Revenue	18,660	24,365	49,380	50,926
Sub-total for reportable segments | Image Enhancement and Maintenance Services
Disaggregation of Revenue [Line Items]
Revenue	60,327	45,486	159,675	144,839
Sub-total for reportable segments | Technology Rentals
Disaggregation of Revenue [Line Items]
Revenue	23,336	16,115	61,763	48,759
Sub-total for reportable segments | Finance income
Disaggregation of Revenue [Line Items]
Revenue	2,929	2,134	8,880	6,713
Content Solutions Segment
Disaggregation of Revenue [Line Items]
Revenue	44,832	30,129	113,046	99,218
Content Solutions Segment | Film Remastering and Distribution
Disaggregation of Revenue [Line Items]
Revenue	41,913	26,687	105,720	77,712
Content Solutions Segment | Other Content Solutions
Disaggregation of Revenue [Line Items]
Revenue	2,919	3,442	7,326	21,506
Content Solutions Segment | Technology Sales
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Content Solutions Segment | Technology Sales | Film Remastering and Distribution
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Content Solutions Segment | Technology Sales | Other Content Solutions
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Content Solutions Segment | Image Enhancement and Maintenance Services
Disaggregation of Revenue [Line Items]
Revenue	44,543	30,043	112,174	99,004
Content Solutions Segment | Image Enhancement and Maintenance Services | Film Remastering and Distribution
Disaggregation of Revenue [Line Items]
Revenue	41,913	26,687	105,720	77,712
Content Solutions Segment | Image Enhancement and Maintenance Services | Other Content Solutions
Disaggregation of Revenue [Line Items]
Revenue	2,630	3,356	6,454	21,292
Content Solutions Segment | Technology Rentals
Disaggregation of Revenue [Line Items]
Revenue	289	86	872	214
Content Solutions Segment | Technology Rentals | Film Remastering and Distribution
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Content Solutions Segment | Technology Rentals | Other Content Solutions
Disaggregation of Revenue [Line Items]
Revenue	289	86	872	214
Content Solutions Segment | Finance income
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Content Solutions Segment | Finance income | Film Remastering and Distribution
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Content Solutions Segment | Finance income | Other Content Solutions
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment
Disaggregation of Revenue [Line Items]
Revenue	60,420	57,971	166,652	152,019
Technology Products and Services Segment | System Sales
Disaggregation of Revenue [Line Items]
Revenue	18,660	24,365	49,380	50,926
Technology Products and Services Segment | System Rentals
Disaggregation of Revenue [Line Items]
Revenue	23,047	16,029	60,891	48,545
Technology Products and Services Segment | Maintenance
Disaggregation of Revenue [Line Items]
Revenue	15,784	15,443	47,501	45,835
Technology Products and Services Segment | Finance income
Disaggregation of Revenue [Line Items]
Revenue	2,929	2,134	8,880	6,713
Technology Products and Services Segment | Technology Sales
Disaggregation of Revenue [Line Items]
Revenue	18,660	24,365	49,380	50,926
Technology Products and Services Segment | Technology Sales | System Sales
Disaggregation of Revenue [Line Items]
Revenue	18,660	24,365	49,380	50,926
Technology Products and Services Segment | Technology Sales | System Rentals
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Technology Sales | Maintenance
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Technology Sales | Finance income
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Image Enhancement and Maintenance Services
Disaggregation of Revenue [Line Items]
Revenue	15,784	15,443	47,501	45,835
Technology Products and Services Segment | Image Enhancement and Maintenance Services | System Sales
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Image Enhancement and Maintenance Services | System Rentals
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Image Enhancement and Maintenance Services | Maintenance
Disaggregation of Revenue [Line Items]
Revenue	15,784	15,443	47,501	45,835
Technology Products and Services Segment | Image Enhancement and Maintenance Services | Finance income
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Technology Rentals
Disaggregation of Revenue [Line Items]
Revenue	23,047	16,029	60,891	48,545
Technology Products and Services Segment | Technology Rentals | System Sales
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Technology Rentals | System Rentals
Disaggregation of Revenue [Line Items]
Revenue	23,047	16,029	60,891	48,545
Technology Products and Services Segment | Technology Rentals | Maintenance
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Technology Rentals | Finance income
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Finance income
Disaggregation of Revenue [Line Items]
Revenue	2,929	2,134	8,880	6,713
Technology Products and Services Segment | Finance income | System Sales
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Finance income | System Rentals
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Finance income | Maintenance
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Technology Products and Services Segment | Finance income | Finance income
Disaggregation of Revenue [Line Items]
Revenue	2,929	2,134	8,880	6,713
All Other
Disaggregation of Revenue [Line Items]
Revenue	1,402	3,352	5,307	8,299
All Other | Technology Sales
Disaggregation of Revenue [Line Items]
Revenue	700	1,940	2,346	3,703
All Other | Image Enhancement and Maintenance Services
Disaggregation of Revenue [Line Items]
Revenue	702	1,405	2,961	4,589
All Other | Technology Rentals
Disaggregation of Revenue [Line Items]
Revenue	0	7	0	7
All Other | Finance income
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0	$ 0	$ 0