Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Direct operating expenses	$ 122,611	$ 116,449	$ 104,909
Non-cash stock-based compensation	20,034	9,595	5,125
Depreciation and amortization	25,697	22,420	17,282
Related Parties
Direct operating expenses	8,095	8,412	9,063
Depreciation and amortization	928	1,228	1,228
Direct Operating Expenses
Non-cash stock-based compensation	5,694	3,234	1,247
Depreciation and amortization	17,352	14,916	12,506
Corporate Expenses
Non-cash stock-based compensation	14,340	6,361	3,878
Depreciation and amortization	232	491	711
Selling, General and Administrative Expenses
Depreciation and amortization	$ 8,113	$ 7,013	$ 4,065

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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