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Deferred Charges and Other Assets	6 Months Ended
Deferred Charges and Other Assets	Jun. 30, 2020
Other Assets, Noncurrent [Abstract]
Deferred Charges and Other Assets	Deferred Charges and Other Assets Amortization expense on other assets of $3,099 and $4,630 is included in costs of sales in the consolidated statements of operations for the three months ended June 30, 2020 and 2019, respectively. Amortization expense on other assets of $6,377 and $9,260 is included in costs of sales in the consolidated statements of operations for the six months ended June 30, 2020 and 2019, respectively.