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Revenue Recognition - Schedule of Contract with Customer, Asset and Liability (Details) - USD ($) | Mar. 31, 2021 | Dec. 31, 2020
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Unearned revenue | $ 65,863,189 | $ 61,625,676
Unearned revenue, net of current portion | 28,300,040 | 23,498,597
Digital Subscriptions [Member] |  |
Unearned revenue | 16,815,476 | 15,039,331
Unearned revenue, net of current portion | 802,124 | 593,136
Magazine Circulation [Member] |  |
Unearned revenue | 49,047,713 | 46,586,345
Unearned revenue, net of current portion | 27,297,916 | 22,712,961
Other [Member] |  |
Unearned revenue, net of current portion | $ 200,000 | $ 192,500

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