Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net revenue	$ 344,026	$ 273,575	$ 297,815
Expenses:
Direct operating expenses (including related parties of $9,063, $8,194, and $9,254) (including non-cash stock-based compensation of $1,247, $732, and $732)	104,909	119,412	125,242
Selling, general and administrative expenses	48,404	53,965	51,535
Corporate expenses (including non-cash stock-based compensation of $3,878, $3,645, and $5,055)	27,807	28,067	26,865
Depreciation and amortization (includes direct operating of $12,506, $11,294, and $10,272; selling, general and administrative of $4,065, $4,696, and $5,450; and corporate of $711, $658 and $551) (including related parties of $1,228, $1,229, and $1,228)	17,282	16,648	16,273
Change in fair value of contingent consideration		(6,478)	(1,202)
Impairment charge	40,035	32,097
Foreign currency (gain) loss	(1,052)	754	1,616
Other operating (gain) loss	(6,895)	(5,994)	(1,187)
Total expenses	337,418	275,228	264,238
Operating income (loss)	6,608	(1,653)	33,577
Interest expense	(8,265)	(13,683)	(15,743)
Interest income	1,748	3,353	3,973
Dividend income	28	918	1,475
Gain (loss) on debt extinguishment		(255)	(550)
Impairment loss on investment			(1,320)
Income (loss) before income taxes	119	(11,320)	21,412
Income tax (expense) benefit	(1,506)	(8,158)	(7,877)
Income (loss) before equity in net income (loss) of nonconsolidated affiliate	(1,387)	(19,478)	13,535
Equity in net income (loss) of nonconsolidated affiliate		(234)	(1,374)
Net income (loss)	(1,387)	(19,712)	12,161
Net (income) loss attributable to redeemable noncontrolling interest	(2,523)
Net income (loss) attributable to common stockholders	$ (3,910)	$ (19,712)	$ 12,161
Basic and diluted earnings per share:
Net income (loss) per share attributable to common stockholders, basic	$ (0.05)	$ (0.23)	$ 0.14
Net income (loss) per share attributable to common stockholders, diluted	(0.05)	(0.23)	0.13
Cash dividends declared per common share, basic and diluted	$ 0.13	$ 0.20	$ 0.20
Weighted average common shares outstanding, basic	84,231,212	85,107,301	89,115,997
Weighted average common shares outstanding, diluted	84,231,212	85,107,301	90,328,583
Digital
Expenses:
Cost of revenue	$ 106,928	$ 36,757	$ 45,096
Direct operating expenses (including related parties of $9,063, $8,194, and $9,254) (including non-cash stock-based compensation of $1,247, $732, and $732)	15,227	18,357	21,521
Selling, general and administrative expenses	15,404	13,904	11,590
Depreciation and amortization (includes direct operating of $12,506, $11,294, and $10,272; selling, general and administrative of $4,065, $4,696, and $5,450; and corporate of $711, $658 and $551) (including related parties of $1,228, $1,229, and $1,228)	$ 2,561	$ 4,723	$ 4,759