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Capital Stock and Changes in Capital Accounts - Warrants (Details) - Learning House - Warrants $ / shares in Units, $ in Millions | Nov. 01, 2018 USD ($) $ / shares shares
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Acquisitions [Abstract] |
Issuance of warrants | $ | $ 0.6
Warrants and rights outstanding, term | 3 years
Class A Common Stock |
Acquisitions [Abstract] |
Class of warrant or right, number of securities called by warrants or rights (in shares) | shares | 400,000
Class of warrant or right, exercise price of warrants or rights (in dollars per share) | $ / shares | $ 90.00

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
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