Related Party Transactions	12 Months Ended
Dec. 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	(15) Related Party Transactions David W. Grzebinski, President and Chief Executive Officer of the Company, is a member of the board of directors for ABS, a not-for-profit that provides global classification services to the marine, offshore and gas industries. The Company paid ABS $1,620,000 in 2021, $2,377,000 in 2020, and $1,774,000 in 2019 to perform audits and surveys of the Company’s vessels in the ordinary course of business. In November 2020, Mr. Grzebinski became a member of the board of directors of UK Protection & Indemnity Association ("UK P&I"), a mutual marine protection and indemnity organization that provides protection and indemnity insurance for third party liabilities and expenses arising from vessel operations. The Company’s marine fleet is insured on a pro rata share basis through UK P&I and Standard Mutual. The Company paid $3,215,000 during 2021 in premiums for coverage in the 2021-2022 policy period and $3,000,000 during 2020, in premiums for coverage in the 2020-2021 policy period in the ordinary course of business. In January 2019, Amy D. Husted, Vice President, General Counsel and Secretary of the Company, became a member of the board of directors of Signal Mutual Indemnity Association Ltd (“Signal”), a group self-insurance not-for-profit organization authorized by the U.S. Department of Labor as a longshore worker’s compensation insurance provider. The Company has been a member of Signal since it was established in 1986. The Company paid Signal $551,000 in 2021, $667,000 in 2020 and $1,391,000 in 2019 in the ordinary course of business. The husband of Ms. Husted is a partner in the law firm of Clark Hill PLC. The Company paid the law firm $2,900,000 in 2021, $1,598,000 in 2020, and $1,278,000 in 2019 for legal services in connection with matters in the ordinary course of business.

Related Party Transactions

12 Months Ended

Dec. 31, 2021

(15) Related Party Transactions

David W. Grzebinski, President and Chief Executive Officer of the Company, is a member of the board of directors for ABS, a not-for-profit that provides global classification services to the marine, offshore and gas industries. The Company paid ABS $1,620,000 in 2021, $2,377,000 in 2020, and $1,774,000 in 2019 to perform audits and surveys of the Company’s vessels in the ordinary course of business.

In November 2020, Mr. Grzebinski became a member of the board of directors of UK Protection & Indemnity Association ("UK P&I"), a mutual marine protection and indemnity organization that provides protection and indemnity insurance for third party liabilities and expenses arising from vessel operations. The Company’s marine fleet is insured on a pro rata share basis through UK P&I and Standard Mutual. The Company paid $3,215,000 during 2021 in premiums for coverage in the 2021-2022 policy period and $3,000,000 during 2020, in premiums for coverage in the 2020-2021 policy period in the ordinary course of business.

In January 2019, Amy D. Husted, Vice President, General Counsel and Secretary of the Company, became a member of the board of directors of Signal Mutual Indemnity Association Ltd (“Signal”), a group self-insurance not-for-profit organization authorized by the U.S. Department of Labor as a longshore worker’s compensation insurance provider. The Company has been a member of Signal since it was established in 1986. The Company paid Signal $551,000 in 2021, $667,000 in 2020 and $1,391,000 in 2019 in the ordinary course of business.

The husband of Ms. Husted is a partner in the law firm of Clark Hill PLC. The Company paid the law firm $2,900,000 in 2021, $1,598,000 in 2020, and $1,278,000 in 2019 for legal services in connection with matters in the ordinary course of business.