Leases	3 Months Ended
Mar. 31, 2013
Leases [Abstract]
Leases	Note 10. Leases Direct Financing Leases In 2005, we entered into a charter which qualified as a direct financing lease with an expiration date of October 2015, and in 1999 we entered into a charter which qualified as a direct financing lease with an expiration date of May 2019. We sold the International flag PCTC with the contract expiring in 2019 to a third party in the first quarter of 2012. In the first quarter of 2013, an Addendum was executed to the Time Charter of one of our PCTC's which, in part, extended the Time Charter for a further period of time. Because this Addendum was substantive, we reassessed the Time Charter classification resulting in the Time Charter being reclassified from a direct financing lease to an operating lease. The book value of the asset is $16.4 million and is now presented in the Vessel, Property, and Other Equipment, section of the balance sheet and is being depreciated over the estimated useful life of the vessel at a quarterly depreciation of $225,355. Sale and Leaseback Transactions On February 22, 2012, we completed a sale and leaseback transaction with Wells Fargo Bank Northwest, National Association, of our 2007-built PCTC. The transaction generated gross proceeds of $59.0 million, which we used to pay down debt of $54.5 million. We are leasing the vessel back under a ten year lease agreement with early buyout options that can be exercised in 2017 and 2019. This lease is classified as an operating lease, and the $14.9 million gain on the sale-leaseback is being deferred and recognized over the term of the lease. On June 15, 2012, we negotiated the early buy-out of the operating lease related to our molten-sulphur carrier. On November 27, 2012, we sold this vessel to BMO Harris Equipment Finance Company for approximately $32 million cash and commenced a seven-year lease agreement with an early buy-out option that can be exercised in 2017. This lease is classified as an operating lease, and the $8.0 million gain on the sale-leaseback is being deferred and recognized over the term of the lease. On November 27, 2012 we sold a 1998-built PCTC to CapitalSource Bank for approximately $31 million cash and commenced a six-year lease agreement with an early buy-out option that can be exercised in 2017. This lease is classified as an operating lease, and the $11.7 million gain on the sale-leaseback is being deferred and recognized over the term of the lease. The Company used the net proceeds of approximately $63 million from the November 27, 2012 transactions to finance a portion of the purchase price for the Company's acquisition of U.S. United Ocean Services, LLC, which was completed on November 30, 2012. On December 27, 2012, we sold a 1999-built PCTC to BB&T Equipment Finance for $32 million cash and commenced a six-year lease agreement with an early buy-out option that can be exercised in 2015 and again in 2018. This lease is classified as an operating lease. We plan to continue to operate all of the aforementioned leased vessels under their respective time charters and contracts of affreightment arrangements. A complete listing of our vessels can be found in "Item 2 – Management's Discussion and Analysis of Financial Condition and Results of Operations – Liquidity and Capital Resources – Debt Covenants" section entitled "Fleet Statistics."

Note 10. Leases

Direct Financing Leases

In 2005, we entered into a charter which qualified as a direct financing lease with an expiration date of October 2015, and in 1999 we entered into a charter which qualified as a direct financing lease with an expiration date of May 2019. We sold the International flag PCTC with the contract expiring in 2019 to a third party in the first quarter of 2012.

In the first quarter of 2013, an Addendum was executed to the Time Charter of one of our PCTC's which, in part, extended the Time Charter for a further period of time. Because this Addendum was substantive, we reassessed the Time Charter classification resulting in the Time Charter being reclassified from a direct financing lease to an operating lease. The book value of the asset is $16.4 million and is now presented in the Vessel, Property, and Other Equipment, section of the balance sheet and is being depreciated over the estimated useful life of the vessel at a quarterly depreciation of $225,355.

Sale and Leaseback Transactions

On February 22, 2012, we completed a sale and leaseback transaction with Wells Fargo Bank Northwest, National Association, of our 2007-built PCTC. The transaction generated gross proceeds of $59.0 million, which we used to pay down debt of $54.5 million. We are leasing the vessel back under a ten year lease agreement with early buyout options that can be exercised in 2017 and 2019. This lease is classified as an operating lease, and the $14.9 million gain on the sale-leaseback is being deferred and recognized over the term of the lease.

On June 15, 2012, we negotiated the early buy-out of the operating lease related to our molten-sulphur carrier. On November 27, 2012, we sold this vessel to BMO Harris Equipment Finance Company for approximately $32 million cash and commenced a seven-year lease agreement with an early buy-out option that can be exercised in 2017. This lease is classified as an operating lease, and the $8.0 million gain on the sale-leaseback is being deferred and recognized over the term of the lease.

On November 27, 2012 we sold a 1998-built PCTC to CapitalSource Bank for approximately $31 million cash and commenced a six-year lease agreement with an early buy-out option that can be exercised in 2017. This lease is classified as an operating lease, and the $11.7 million gain on the sale-leaseback is being deferred and recognized over the term of the lease.

The Company used the net proceeds of approximately $63 million from the November 27, 2012 transactions to finance a portion of the purchase price for the Company's acquisition of U.S. United Ocean Services, LLC, which was completed on November 30, 2012.

On December 27, 2012, we sold a 1999-built PCTC to BB&T Equipment Finance for $32 million cash and commenced a six-year lease agreement with an early buy-out option that can be exercised in 2015 and again in 2018. This lease is classified as an operating lease.

We plan to continue to operate all of the aforementioned leased vessels under their respective time charters and contracts of affreightment arrangements. A complete listing of our vessels can be found in "Item 2 – Management's Discussion and Analysis of Financial Condition and Results of Operations – Liquidity and Capital Resources – Debt Covenants" section entitled "Fleet Statistics."