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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	(13) Subsequent Events: On May 4, 2021, the Company's Board of Directors declared a regular quarterly dividend of $0.10 per share on the Company's Class A and Class B Common Stock. The dividend per share will be payable June 1, 2021 to shareholders of record on May 18, 2021.