W&T Offshore, Inc. Annual report pursuant to Section 13 and 15(d)

Incentive Compensation Plan and Directors Compensation Plan - Additional Information (Details)

v3.3.1.900

Incentive Compensation Plan and Directors Compensation Plan - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2013
Compensation Plan [Line Items]
Share based compensation performance awards grant performance period	10 years
Annual incentive awards payment period	90 days
Percentage of restricted stock units granted not subject to performance criteria			3.00%
Expected vesting month and year			2015-12
Cash based compensation payment period after achievement of financial condition	30 days
Cash based compensation payment period		75 days
2014 Annual Incentive Plan Award \| Chief Executive Officer
Compensation Plan [Line Items]
Common stock pre-determined price per share		$ 14.66
Performance based awards, percentage		100.00%
2013 Annual Incentive Plan Award \| Chief Executive Officer
Compensation Plan [Line Items]
Common stock pre-determined price per share			$ 14.84	$ 14.84
Performance based awards, percentage				100.00%
Cash-based Awards \| Minimum
Compensation Plan [Line Items]
Adjusted EBITDA less interest expense	$ 300,000,000
Restricted Shares \| Directors Compensation Plan Share-Based Awards
Compensation Plan [Line Items]
Vesting rights description	Vesting occurs upon completion of the specified vesting period and one-third of each grant vests each year over a three-year period.
Grant vesting period	3 years	3 years	3 years
Adjusted EBITDA and Adjusted EBITDA Margin
Compensation Plan [Line Items]
Restricted stock units earning per share, minimum	0.00%	0.00%	0.00%
Restricted stock units earning per share, maximum	100.00%	100.00%	150.00%
Shareholder Return Performance Stock Awards
Compensation Plan [Line Items]
Restricted stock units earning per share, minimum			0.00%
Restricted stock units earning per share, maximum			200.00%

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

+ References

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- Definition

Price of a single share of a number of saleable stocks of a company.

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- Definition

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- Definition

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- Definition

Compensation plan line items.

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- Definition

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- Definition

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- Definition

Share-based compensation arrangement by share based payment award equity instruments other than options, performance based units, percentage.

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- Definition

Share based compensation arrangement by share based payment award fair value assumptions expected vesting month and year.

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- Definition

The maximum performance period for share-based compensation awards made under the amended and restated compensation plan.

+ References

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