The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Expected term of share-based compensation awards, 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 (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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Equity-Based Compensation - Valuation Assumptions (Details) - $ / shares	1 Months Ended			12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014	Dec. 31, 2016	Dec. 31, 2014
2012 Plan [Member] \| Stock/Unit Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield				0.00%
2012 Plan [Member] \| Performance Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value, performance restricted stock units (in dollars per share)		$ 137.14	$ 125.63	$ 103.06
Expected volatility		43.36%	39.60%
Risk-free rate		0.49%	0.30%
Viper LTIP [Member] \| Stock/Unit Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value, stock/unit options (in dollars per share)					$ 4.24
Expected volatility					36.00%
Expected dividend yield					5.90%
Expected term (in years)					3 years
Risk-free rate					0.99%
Share-based Compensation Award, Tranche One [Member] \| 2012 Plan [Member] \| Performance Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value, performance restricted stock units (in dollars per share)	$ 103.41
Expected volatility	41.91%
Risk-free rate	0.86%
Share-based Compensation Award, Tranche Two [Member] \| 2012 Plan [Member] \| Performance Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value, performance restricted stock units (in dollars per share)	$ 102.35
Expected volatility	42.16%
Risk-free rate	1.10%