Revenue from Contracts with Customers - Disaggregation of Revenue by Segment (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Revenues	[1]	$ 97,979	$ 73,968	$ 184,925	$ 134,004
Technology Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues		29,360	8,229	47,182	17,205
Image Enhancement and Maintenance Services [Member]
Disaggregation of Revenue [Line Items]
Revenues		46,867	44,958	93,994	81,052
Technology Rentals [Member]
Disaggregation of Revenue [Line Items]
Revenues		19,546	18,525	39,604	31,186
Finance Income [Member]
Disaggregation of Revenue [Line Items]
Revenues		2,206	2,256	4,145	4,561
Content Solutions Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	31,290	29,544	63,391	50,532
Content Solutions Segment [Member] | Film Remastering And Distribution [Member]
Disaggregation of Revenue [Line Items]
Revenues		29,219	27,581	59,292	47,145
Content Solutions Segment [Member] | Other Content Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues		2,071	1,963	4,099	3,387
Content Solutions Segment [Member] | Image Enhancement and Maintenance Services [Member]
Disaggregation of Revenue [Line Items]
Revenues		31,290	29,544	63,391	50,514
Content Solutions Segment [Member] | Image Enhancement and Maintenance Services [Member] | Film Remastering And Distribution [Member]
Disaggregation of Revenue [Line Items]
Revenues		29,219	27,581	59,292	47,145
Content Solutions Segment [Member] | Image Enhancement and Maintenance Services [Member] | Other Content Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues		2,071	1,963	4,099	3,369
Content Solutions Segment [Member] | Technology Rentals [Member]
Disaggregation of Revenue [Line Items]
Revenues					18
Content Solutions Segment [Member] | Technology Rentals [Member] | Other Content Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues					18
Technology Products and Services Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues	[1]	63,976	42,857	115,643	80,720
Technology Products and Services Segment [Member] | System Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues		27,734	7,393	43,853	15,366
Technology Products and Services Segment [Member] | System Rentals [Member]
Disaggregation of Revenue [Line Items]
Revenues		19,546	18,525	39,604	31,168
Technology Products and Services Segment [Member] | Maintenance [Member]
Disaggregation of Revenue [Line Items]
Revenues		14,490	14,683	28,041	29,625
Technology Products and Services Segment [Member] | Technology Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues		27,734	7,393	43,853	15,366
Technology Products and Services Segment [Member] | Technology Sales [Member] | System Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues		27,734	7,393	43,853	15,366
Technology Products and Services Segment [Member] | Image Enhancement and Maintenance Services [Member]
Disaggregation of Revenue [Line Items]
Revenues		14,490	14,683	28,041	29,625
Technology Products and Services Segment [Member] | Image Enhancement and Maintenance Services [Member] | Maintenance [Member]
Disaggregation of Revenue [Line Items]
Revenues		14,490	14,683	28,041	29,625
Technology Products and Services Segment [Member] | Technology Rentals [Member]
Disaggregation of Revenue [Line Items]
Revenues		19,546	18,525	39,604	31,168
Technology Products and Services Segment [Member] | Technology Rentals [Member] | System Rentals [Member]
Disaggregation of Revenue [Line Items]
Revenues		19,546	18,525	39,604	31,168
Technology Products and Services Segment [Member] | Finance Income [Member]
Disaggregation of Revenue [Line Items]
Revenues		2,206	2,256	4,145	4,561
Content Solutions Segment Technology Products and Services Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues		95,266	72,401	179,034	131,252
Content Solutions Segment Technology Products and Services Segment [Member] | Technology Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues		27,734	7,393	43,853	15,366
Content Solutions Segment Technology Products and Services Segment [Member] | Image Enhancement and Maintenance Services [Member]
Disaggregation of Revenue [Line Items]
Revenues		45,780	44,227	91,432	80,139
Content Solutions Segment Technology Products and Services Segment [Member] | Technology Rentals [Member]
Disaggregation of Revenue [Line Items]
Revenues		19,546	18,525	39,604	31,186
Content Solutions Segment Technology Products and Services Segment [Member] | Finance Income [Member]
Disaggregation of Revenue [Line Items]
Revenues		2,206	2,256	4,145	4,561
All Other Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues		2,713	1,567	5,891	2,752
All Other Segment [Member] | Technology Sales [Member]
Disaggregation of Revenue [Line Items]
Revenues		1,626	836	3,329	1,839
All Other Segment [Member] | Image Enhancement and Maintenance Services [Member]
Disaggregation of Revenue [Line Items]
Revenues		$ 1,087	$ 731	$ 2,562	$ 913

[1] The Company’s largest customer represents 11% and 8% of total Revenues for the three and six months ended June 30, 2023, respectively (2022 — 17% and 15%, respectively). No single customer comprises more than 10% of the Company’s total Accounts Receivable as of June 30, 2023 and December 31, 2022.