LONG-TERM DEBT (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended											12 Months Ended			12 Months Ended			12 Months Ended		1 Months Ended			12 Months Ended			3 Months Ended		12 Months Ended		3 Months Ended									1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Matson South Pacific	Dec. 31, 2013 5.79%, payable through 2020	Dec. 31, 2012 5.79%, payable through 2020	Dec. 31, 2013 3.66%, payable through 2023	Dec. 31, 2012 3.66%, payable through 2023	Dec. 31, 2013 4.16%, payable through 2027	Dec. 31, 2012 4.16%, payable through 2027	Dec. 31, 2013 4.31%, payable through 2032	Dec. 31, 2012 4.31%, payable through 2032	Dec. 31, 2013 5.34% payable through 2028 item	Dec. 31, 2012 5.34% payable through 2028	Sep. 30, 2003 5.34% payable through 2028	Dec. 31, 2013 5.27% payable through 2029 item	Dec. 31, 2012 5.27% payable through 2029	Aug. 31, 2004 5.27% payable through 2029	Dec. 31, 2013 4.79% payable (Series B Notes)	May 31, 2005 4.79% payable (Series B Notes)	Jun. 30, 2012 Revolving Credit Facility	Dec. 31, 2012 Revolving Credit Facility	Jun. 30, 2012 Revolving Credit Facility MatNav	Dec. 31, 2012 Revolving Credit Facility Alexander & Baldwin	Dec. 31, 2011 Revolving Credit Facility Alexander & Baldwin	Aug. 31, 2011 Revolving Credit Facility Alexander & Baldwin	Jun. 30, 2012 Unsecured revolving credit facility	Dec. 31, 2013 Unsecured revolving credit facility	Dec. 31, 2013 Unsecured revolving credit facility Minimum	Dec. 31, 2013 Unsecured revolving credit facility Maximum	Jun. 30, 2012 Unsecured debt tranches	Jun. 30, 2012 Unsecured debt 2015 through 2016 Scenario forecast	Jun. 30, 2012 Unsecured debt 2017 through mid-year 2023 Scenario forecast	Jun. 30, 2012 Unsecured debt Mid-year 2023 through mid-year 2027 Scenario forecast	Jun. 30, 2012 Unsecured debt After mid-year 2027 Scenario forecast	Jun. 30, 2012 Unsecured debt, tranche maturing in 2023	Jun. 30, 2012 Unsecured debt, tranche maturing in 2027	Jun. 30, 2012 Unsecured debt, tranche maturing in 2032	Jun. 30, 2012 Secured debt	Jan. 31, 2014 Senior unsecured long-term debt Subsequent event	Jan. 31, 2014 Senior unsecured long-term debt 2021 Scenario forecast	Jan. 31, 2014 Senior unsecured long-term debt 2022 and 2023 Scenario forecast	Jan. 31, 2014 Senior unsecured long-term debt 2024 to 2027 Scenario forecast	Jan. 31, 2014 Senior unsecured long-term debt 2028 Scenario forecast	Jan. 31, 2014 Senior unsecured long-term debt Starting in 2029, and thereafter until 2044 Scenario forecast
Debt
Capital leases	$ 2.4		$ 2.4
Long-term debt	286.1	319.1		45.5	52.5	77.5	77.5	55.0	55.0	37.5	37.5	33.0	35.2		35.2	37.4					24.0
Less current portion	(12.5)	(16.4)
Total long-term debt	273.6	302.7
Debt issued														55.0			55.0		105.0											170.0					77.5	55.0	37.5		100.0
Number of tranches																														3
Interest rate (as a percent)				5.79%	5.79%	3.66%	3.66%	4.16%	4.16%	4.31%	4.31%	5.34%	5.34%	5.34%	5.27%	5.27%	5.27%		4.79%		1.69%														3.66%	4.16%	4.31%		4.35%
Weighted average coupon rate (as a percent)																														3.97%
Weighted average period																														9 years 2 months 12 days									14 years 6 months
Semi-annual payments												1.1			1.1			3.5													4.6	8.4	3.8	1.2
Debt instrument term																		15 years								5 years													30 years
Release of MV Manulani as security for debt																																						56.0
Annual principal payments																																								5.0	7.5	10.0	8.0	2.0
Number of semi-annual payments												50			50
Maximum borrowing capacity																									125.0	375.0
Interest rate, minimum (as a percent)																							1.21%	0.44%
Interest rate, maximum (as a percent)																							1.92%	1.91%
Extinguishment of debt																				72.0
Outstanding amount																						72.0
Current borrowing capacity	5.8																										5.8
Secured Debt	68.2
Debt covenant, required ratio of debt to consolidated EBITDA	1.61																												3.25
Ratio of consolidated EBITDA to interest expense	12.28																											3.50
Debt covenant, required principal amount of priority debt as a percentage of consolidated tangible assets	5.80%																												20.00%
Debt covenant, required principal amount of priority debt (excluding Title XI) as a percentage of consolidated tangible assets																													10.00%
Long-term debt maturities
2014	12.5
2015	21.7
2016	20.6
2017	28.2
2018	28.2
Thereafter	174.9
Total	$ 286.1	$ 319.1		$ 45.5	$ 52.5	$ 77.5	$ 77.5	$ 55.0	$ 55.0	$ 37.5	$ 37.5	$ 33.0	$ 35.2		$ 35.2	$ 37.4					$ 24.0