Investments, At Equity, And Advances To 50% Or Less Owned Companies	9 Months Ended
Sep. 30, 2020
Equity Method Investments and Joint Ventures [Abstract]
Investments, At Equity, And Advances To 50% Or Less Owned Companies	4. INVESTMENTS, AT EQUITY, AND ADVANCES TO 50% OR LESS OWNED COMPANIES Trailer Bridge. During the nine months ended September 30, 2020, the Company earned revenues of $3.1 million from the time charter of one U.S.-flag offshore tug to Trailer Bridge. RF Vessel Holdings. During the nine months ended September 30, 2020, the Company and its partner each contributed capital of $4.4 million to RF Vessel Holdings. Golfo de Mexico. During the nine months ended September 30, 2020, the Company and its partner each contributed capital of $0.5 million to Golfo de Mexico. KSM. During the nine months ended September 30, 2020, the Company earned revenues of $1.2 million from the bareboat charter of two foreign-flag harbor tugs to KSM. Bunge-SCF Grain. During the nine months ended September 30, 2020, the Company earned revenues of $0.5 million from the lease of a terminal facility to Bunge-SCF Grain. SCF Bunge Marine. During the nine months ended September 30, 2020, the Company earned revenues of $6.0 million from the time charter of eight inland river towboats to SCF Bunge Marine. During the nine months ended September 30, 2020, the Company and its partner each received a cash dividend of $1.3 million from SCF Bunge Marine. Other Inland Services. During the nine months ended September 30, 2020, the Company and its partner each received a cash dividend of $0.2 million from this 50% or less owned company. O’Brien’s do Brazil. During the nine months ended September 30, 2020, the Company and its partner each received a cash dividend of $0.5 million from O'Brien's do Brazil. VA&E. During the nine months ended September 30, 2020, the Company provided a working capital advance of $1.2 million to VA&E and received repayments of $0.9 million on the working capital advance and on subordinated loans from VA&E.

4. INVESTMENTS, AT EQUITY, AND ADVANCES TO 50% OR LESS OWNED COMPANIES

Trailer Bridge. During the nine months ended September 30, 2020, the Company earned revenues of $3.1 million from the time charter of one U.S.-flag offshore tug to Trailer Bridge.

RF Vessel Holdings. During the nine months ended September 30, 2020, the Company and its partner each contributed capital of $4.4 million to RF Vessel Holdings.

Golfo de Mexico. During the nine months ended September 30, 2020, the Company and its partner each contributed capital of $0.5 million to Golfo de Mexico.

KSM. During the nine months ended September 30, 2020, the Company earned revenues of $1.2 million from the bareboat charter of two foreign-flag harbor tugs to KSM.

Bunge-SCF Grain. During the nine months ended September 30, 2020, the Company earned revenues of $0.5 million from the lease of a terminal facility to Bunge-SCF Grain.

SCF Bunge Marine. During the nine months ended September 30, 2020, the Company earned revenues of $6.0 million from the time charter of eight inland river towboats to SCF Bunge Marine. During the nine months ended September 30, 2020, the Company and its partner each received a cash dividend of $1.3 million from SCF Bunge Marine.

Other Inland Services. During the nine months ended September 30, 2020, the Company and its partner each received a cash dividend of $0.2 million from this 50% or less owned company.

O’Brien’s do Brazil. During the nine months ended September 30, 2020, the Company and its partner each received a cash dividend of $0.5 million from O'Brien's do Brazil.

VA&E. During the nine months ended September 30, 2020, the Company provided a working capital advance of $1.2 million to VA&E and received repayments of $0.9 million on the working capital advance and on subordinated loans from VA&E.