Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Flows From Operating Activities:
Net income	$ 88.4	$ 65.1
Reconciling adjustments:
Depreciation and amortization	70.8	74.3
Deferred income taxes	26.5	22.3
Share-based compensation expense	8.2	7.8
Equity in income of Terminal Joint Venture	(28.8)	(19.3)
Distribution from Terminal Joint Venture	42.0	14.0
Other	(2.1)	2.1
Changes in assets and liabilities:
Accounts receivable, net	(46.1)	(24.3)
Deferred dry-docking payments	(10.5)	(45.1)
Deferred dry-docking amortization	27.5	35.7
Prepaid expenses and other assets	3.0	4.3
Accounts payable, accruals and other liabilities	24.8	14.5
Other long-term liabilities	(0.7)	(4.4)
Net cash provided by operating activities	203.0	147.0
Cash Flows From Investing Activities:
Capitalized vessel construction expenditures	(222.6)	(172.2)
Other capital expenditures	(44.7)	(43.3)
Proceeds from (payments for) disposal of property and equipment	31.3	(0.3)
Cash deposits into Capital Construction Fund	(246.6)	(64.6)
Withdrawals from Capital Construction Fund	247.5	95.8
Other	3.7
Net cash used in investing activities	(231.4)	(184.6)
Cash Flows From Financing Activities:
Repayments of debt and capital leases	(17.0)	(19.5)
Proceeds from revolving credit facility	389.4	341.0
Repayments of revolving credit facility	(321.4)	(221.0)
Payment of financing costs		(1.7)
Proceeds from issuance of capital stock	0.5	0.4
Dividends paid	(26.3)	(25.2)
Repurchase of Matson common stock		(18.4)
Tax withholding related to net share settlements of restricted stock units	(4.5)	(7.2)
Net cash provided by financing activities	20.7	48.4
Net (Decrease) Increase in Cash and Cash Equivalents	(7.7)	10.8
Cash and Cash Equivalents, Beginning of the Period	19.8	13.9
Cash and Cash Equivalents, End of the Period	12.1	24.7
Supplemental Cash Flow Information:
Interest paid, net of capitalized interest	14.5	20.5
Income tax paid, net of income tax refunds	4.6	(0.1)
Non-cash Information:
Capital expenditures included in accounts payable, accruals and other liabilities	$ 0.4	$ 1.5