Intangible Assets, Net - Summary of Amortization Recorded in Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Finite Lived Intangible Assets [Line Items]
Amortization	$ 307	$ 307	$ 614	$ 614
Platform Operations
Finite Lived Intangible Assets [Line Items]
Amortization	175	175	350	350
General and Administrative
Finite Lived Intangible Assets [Line Items]
Amortization	$ 132	$ 132	$ 264	$ 264

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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