Background and Basis of Presentation	12 Months Ended
Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Background and Basis of Presentation	BACKGROUND AND BASIS OF PRESENTATION Description of Business: Prior to June 29, 2012, A&B’s businesses included Matson Navigation Company Inc., a wholly owned subsidiary that provided ocean transportation, truck brokerage and intermodal services. As part of a strategic initiative designed to allow A&B to independently execute its strategies and to best enhance and maximize its growth prospects and shareholder value, A&B made a decision to separate the transportation businesses from the Hawaii real estate and agriculture businesses. In preparation for the separation, A&B modified its legal-entity structure and became a wholly owned subsidiary of a newly created entity, Alexander & Baldwin Holdings, Inc. ("Holdings"). On June 29, 2012, Holdings distributed to its shareholders all of the common stock of A&B stock in a tax-free distribution (the “Separation”). Holders of Holdings common stock continued to own the transportation businesses, but also received one share of A&B common stock for each share of Holdings common stock held at the close of business on June 18, 2012, the record date. Following the Separation, Holdings changed its name to Matson, Inc. On July 2, 2012, A&B began regular trading on the New York Stock Exchange under the ticker symbol “ALEX” as an independent, public company. The financial statements and related financial information pertaining to the period preceding the Separation have been presented on a combined basis and reflect the financial position, results of operations and cash flows of the real estate and agriculture businesses and corporate functions of Alexander & Baldwin, Inc., all of which were under common ownership and common management prior to the Separation. The financial statements and related financial information pertaining to the period subsequent to the Separation have been presented on a consolidated basis. The financial statements for periods prior to the Separation included herein may not necessarily reflect what A&B’s results of operations, financial position and cash flows would have been had A&B been a stand-alone company during the periods presented. A&B is headquartered in Honolulu and operates four segments, principally in Hawaii: Real Estate Development and Sales; Real Estate Leasing; Agribusiness; and Materials and Construction. Real Estate Development and Sales: The Real Estate Development and Sales segment generates its revenues through the investment in and development and sale of land and commercial and residential properties in Hawaii. Real Estate Leasing: The Real Estate Leasing segment owns, operates and manages retail, office and industrial properties in Hawaii and on the Mainland. The Real Estate Leasing segment also leases urban land in Hawaii to third-party lessees. Agribusiness: The Agribusiness segment produces bulk raw sugar, specialty food grade sugars and molasses; produces and sells specialty food-grade sugars; provides general trucking services, equipment maintenance and repair services; leases agricultural land to third parties; and generates and sells electricity to the extent not used in A&B’s Agribusiness operations. Materials and Construction: The Materials and Construction segment, which includes the results of Grace from October 1, 2013, the date of acquisition, performs asphalt paving as prime contractor and subcontractor; imports and sells liquid asphalt; mines, processes and sells basalt aggregate; produces and sells asphaltic concrete; provides and sells various construction- and traffic-control-related products and manufactures and sells precast concrete products. Reclassifications: The Company reclassified certain 2012 year amounts in the Consolidated Statements of Cash Flows to improve the transparency of its cash flows. The Company's 1031 activities in the consolidated statement of cash flows for 2012 were previously presented as non-cash activities, but those activities are now reflected as additional items within cash flows from investing activities. Net cash provided by (used in) operations, net cash provided by (used in) investing activities and net cash provided by (used in) financing activities did not change as a result of the reclassifications. Revisions of prior period financial statements: In the course of preparing the Company’s financial statements for the year ended December 31, 2014, the Company identified misstatements in certain deferred tax accounts related to prior periods. For the year ended December 31, 2013, income tax expense was understated and net income and comprehensive income attributable to A&B was overstated by $2.6 million, which includes a $1.6 million out-of-period 2013 adjustment to income taxes previously recorded in the first quarter of 2014. The balance sheet impact of the misstatement resulted in an overstatement of non-current deferred taxes and income tax receivable by approximately $0.6 million and $2.0 million, respectively. For the year ended December 31, 2012, income tax expense was understated and net income and comprehensive income attributable to A&B was overstated by $1.7 million. The balance sheet impact of the misstatement resulted in an overstatement of non-current deferred and current deferred taxes by approximately $1.5 million and $0.2 million, respectively. Net investment within the consolidated statement of equity as of January 1, 2012 was overstated by $1.8 million. Accordingly, the Company has corrected the misstatements for the years ended December 31, 2013 and 2012 in the accompanying financial statements. The Company assessed the materiality of these misstatements quantitatively and qualitatively and has concluded that the correction of these errors are immaterial to the consolidated financial statements taken as a whole. The impact of the misstatements had no impact on pre-tax income or cash flows from operating, investing or financing activities. Rounding: Amounts in the consolidated financial statements and notes thereto are rounded to the nearest tenth of a million, but per-share calculations were determined based on amounts before rounding. Accordingly, a recalculation of some per-share amounts and percentages, if based on the reported data, may be slightly different.

BACKGROUND AND BASIS OF PRESENTATION

Description of Business: Prior to June 29, 2012, A&B’s businesses included Matson Navigation Company Inc., a wholly owned subsidiary that provided ocean transportation, truck brokerage and intermodal services. As part of a strategic initiative designed to allow A&B to independently execute its strategies and to best enhance and maximize its growth prospects and shareholder value, A&B made a decision to separate the transportation businesses from the Hawaii real estate and agriculture businesses. In preparation for the separation, A&B modified its legal-entity structure and became a wholly owned subsidiary of a newly created entity, Alexander & Baldwin Holdings, Inc. ("Holdings"). On June 29, 2012, Holdings distributed to its shareholders all of the common stock of A&B stock in a tax-free distribution (the “Separation”). Holders of Holdings common stock continued to own the transportation businesses, but also received one share of A&B common stock for each share of Holdings common stock held at the close of business on June 18, 2012, the record date. Following the Separation, Holdings changed its name to Matson, Inc. On July 2, 2012, A&B began regular trading on the New York Stock Exchange under the ticker symbol “ALEX” as an independent, public company.

The financial statements and related financial information pertaining to the period preceding the Separation have been presented on a combined basis and reflect the financial position, results of operations and cash flows of the real estate and agriculture businesses and corporate functions of Alexander & Baldwin, Inc., all of which were under common ownership and common management prior to the Separation. The financial statements and related financial information pertaining to the period subsequent to the Separation have been presented on a consolidated basis. The financial statements for periods prior to the Separation included herein may not necessarily reflect what A&B’s results of operations, financial position and cash flows would have been had A&B been a stand-alone company during the periods presented.

A&B is headquartered in Honolulu and operates four segments, principally in Hawaii: Real Estate Development and Sales; Real Estate Leasing; Agribusiness; and Materials and Construction.

Real Estate Development and Sales: The Real Estate Development and Sales segment generates its revenues through the investment in and development and sale of land and commercial and residential properties in Hawaii.

Real Estate Leasing: The Real Estate Leasing segment owns, operates and manages retail, office and industrial properties in Hawaii and on the Mainland. The Real Estate Leasing segment also leases urban land in Hawaii to third-party lessees.

Agribusiness: The Agribusiness segment produces bulk raw sugar, specialty food grade sugars and molasses; produces and sells specialty food-grade sugars; provides general trucking services, equipment maintenance and repair services; leases agricultural land to third parties; and generates and sells electricity to the extent not used in A&B’s Agribusiness operations.

Materials and Construction: The Materials and Construction segment, which includes the results of Grace from October 1, 2013, the date of acquisition, performs asphalt paving as prime contractor and subcontractor; imports and sells liquid asphalt; mines, processes and sells basalt aggregate; produces and sells asphaltic concrete; provides and sells various construction- and traffic-control-related products and manufactures and sells precast concrete products.

Reclassifications: The Company reclassified certain 2012 year amounts in the Consolidated Statements of Cash Flows to improve the transparency of its cash flows. The Company's 1031 activities in the consolidated statement of cash flows for 2012 were previously presented as non-cash activities, but those activities are now reflected as additional items within cash flows from investing activities. Net cash provided by (used in) operations, net cash provided by (used in) investing activities and net cash provided by (used in) financing activities did not change as a result of the reclassifications.

Revisions of prior period financial statements: In the course of preparing the Company’s financial statements for the year ended December 31, 2014, the Company identified misstatements in certain deferred tax accounts related to prior periods. For the year ended December 31, 2013, income tax expense was understated and net income and comprehensive income attributable to A&B was overstated by $2.6 million, which includes a $1.6 million out-of-period 2013 adjustment to income taxes previously recorded in the first quarter of 2014. The balance sheet impact of the misstatement resulted in an overstatement of non-current deferred taxes and income tax receivable by approximately $0.6 million and $2.0 million, respectively. For the year ended December 31, 2012, income tax expense was understated and net income and comprehensive income attributable to A&B was overstated by $1.7 million. The balance sheet impact of the misstatement resulted in an overstatement of non-current deferred and current deferred taxes by approximately $1.5 million and $0.2 million, respectively. Net investment within the consolidated statement of equity as of January 1, 2012 was overstated by $1.8 million. Accordingly, the Company has corrected the misstatements for the years ended December 31, 2013 and 2012 in the accompanying financial statements. The Company assessed the materiality of these misstatements quantitatively and qualitatively and has concluded that the correction of these errors are immaterial to the consolidated financial statements taken as a whole. The impact of the misstatements had no impact on pre-tax income or cash flows from operating, investing or financing activities.

Rounding: Amounts in the consolidated financial statements and notes thereto are rounded to the nearest tenth of a million, but per-share calculations were determined based on amounts before rounding. Accordingly, a recalculation of some per-share amounts and percentages, if based on the reported data, may be slightly different.