Refers to the amount of accruals for revenues earned included in accounts receivable.

No definition available.

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- Definition

Refers to the accumulated amount of amortization of goodwill.

+ References

No definition available.

+ Details

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- Definition

Amount of interest expenses excludes capitalized interest during the period.

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No definition available.

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- Definition

Refers to the percentage of other investments related to operating and financial policies ownership.

+ References

No definition available.

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- Definition

Represents the period in which recertification of ocean going vessels occur twice.

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No definition available.

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- Definition

Represents the period of amortization of shipyard costs.

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No definition available.

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- Definition

Refers to the amount of receivables from insurance companies to cover claims in excess included in accounts receivable.

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

Refers to the period of revenue derived form the term contracts maturity.

+ References

No definition available.

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- Details

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Paragraph 15

-Subparagraph a

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Balance Type:	credit
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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

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-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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- Definition

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Amount of interest capitalized during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Allowance for Funds Used during Construction

-URI http://asc.fasb.org/extlink&oid=6504829

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Other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 22

-Article 12

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Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Line Items]
Limited partnership ownership (in hundredths)	50.00%
Accruals for revenues earned included in accounts receivable	$ 143,615,000	$ 69,481,000
Period in which recertification of ocean going vessels occur twice	5 years
Receivables from insurance companies to cover claims in excess included in accounts receivable	92,379,000	22,396,000
Interest Expense Excludes Capitalized Interest	639,000
Interest amount capitalized		0us-gaap_InterestCostsCapitalized	0us-gaap_InterestCostsCapitalized
Impairment of goodwill	0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Gross carrying value of goodwill	608,872,000us-gaap_GoodwillGross	608,872,000us-gaap_GoodwillGross
Accumulated amortization	15,566,000kex_AccumulatedAmortizationOfGoodwill	15,566,000kex_AccumulatedAmortizationOfGoodwill
Accumulated impairment losses	1,901,000	1,901,000
Net goodwill	591,405,000us-gaap_Goodwill	591,405,000us-gaap_Goodwill
Amortization of scheduled major maintenance costs	16,409,000us-gaap_OtherNoncashIncomeExpense	9,029,000us-gaap_OtherNoncashIncomeExpense	3,924,000us-gaap_OtherNoncashIncomeExpense
Accrued insurance liabilities	25,416,000	22,971,000	17,876,000
Minimum [Member]
Significant Accounting Policies [Line Items]
Other investments ownership percentage (in hundredths)	20.00%
Period of amortization of shipyard costs	30 months
Maximum [Member]
Significant Accounting Policies [Line Items]
Other investments ownership percentage (in hundredths)	50.00%
Period of amortization of shipyard costs	60 months
Buildings [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of the individual assets	10 years
Buildings [Member] \| Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of the individual assets	40 years
Other Equipment [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of the individual assets	2 years
Other Equipment [Member] \| Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of the individual assets	10 years
Marine Transportation Equipment [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of the individual assets	5 years
Marine Transportation Equipment [Member] \| Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of the individual assets	40 years
Marine Transportation Segment [Member]
Significant Accounting Policies [Line Items]
Net goodwill	381,243,000	381,243,000
Range of term contracts	1 year
Marine Transportation Segment [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Range of term contracts	1 year
Marine Transportation Segment [Member] \| Maximum [Member]
Significant Accounting Policies [Line Items]
Range of term contracts	5 years
Diesel Engine Services Segment [Member]
Significant Accounting Policies [Line Items]
Net goodwill	$ 210,162,000	$ 210,162,000