Subsequent event (Notes)

12 Months Ended

Dec. 31, 2013

Subsequent Event [Line Items]

Subsequent Events [Text Block]

19.    Subsequent Event

On February 25, 2014, a newly-formed, wholly-owned subsidiary of the Company, CBP Properties, LLC ("CPB"), entered into a purchase and sale agreement (the "PSA") to purchase approximately 340 acres of land located in Harris County, Texas. from Pasadena Nitrogen, LLC ("Seller"), for a purchase price of approximately $22 million, to be paid in cash at closing. The closing occurred on February 26, 2014.

The Company financed the purchase of the land through a draw on on the revolving portion of its Credit Facility. CPB and the Company intend to use the property as a dredge material placement area ("DMPA") along the upper Houston Ship Channel.

The PSA contains customary representations, warranties, and covenants between CPB and the Seller Agrifos Holdings, Inc. ("Agrifos"), parent of the Seller, joined the PSA to accept joint and several liability with the Seller for all Seller's obligations under the PSA, whether such obligations arise before or after closing. The Seller, Agrifos, CPB, and the Company also executed a mutual indemnification agreement as provided by the PSA.