Summary of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense	$ 2,892	$ 1,281	$ 4,741	$ 3,603
Cost of Service Revenue [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense	124	27	155	60
Engineering, Design and Development [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense	380	162	487	318
Sales and Marketing [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense	388	196	536	525
General and Administrative [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense	1,852	834	3,368	2,565
Discontinued Operations Held for Sale [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense	2,802	1,883	3,855	3,556
Discontinued Operations Held for Sale [Member] | Cost of Service Revenue [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense		363		807
Discontinued Operations Held for Sale [Member] | Engineering, Design and Development [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense		426		1,023
Discontinued Operations Held for Sale [Member] | Sales and Marketing [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense		393		816
Discontinued Operations Held for Sale [Member] | General and Administrative [Member]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total stock-based compensation expense	$ 2,802	$ 701	$ 3,855	$ 910