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Share and Unit-Based Plans (Tables)

3 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Compensation cost under the share and unit-based plans

The following summarizes the compensation cost under the share and unit-based plans:

		For the Three Months Ended March 31,
		2017				2016
LTIP Units		$	14,381			$	17,399
Stock awards		—				20
Stock units		2,612				3,372
Stock options		4				4
Phantom stock units		177				604
		$	17,174			$	21,399

Summary of activity of non-vested LTIP Units, stock awards, phantom stock and stock units

The following table summarizes the activity of the non-vested LTIP Units, phantom stock units and stock units:

	LTIP Units							Phantom Stock Units							Stock Units
	Units			Value(1)				Units			Value(1)				Units			Value(1)
Balance at January 1, 2017	322,572			$	58.18			5,845			$	81.47			148,428			$	78.53
Granted	498,670			55.54				5,217			75.89				85,562			66.57
Vested	(134,742	)		66.57				(2,494	)		87.90				(73,454	)		76.65
Forfeited	—			—				—			—				—			—
Balance at March 31, 2017	686,500			$	54.61			8,568			$	76.20			160,536			$	73.01

(1) Value represents the weighted average grant date fair value.

Summary of activity of SARs and stock options outstanding

The following table summarizes the activity of the stock appreciations rights ("SARs") and stock options outstanding:

	SARs							Stock Options
	Units			Value(1)				Units			Value(1)
Balance at January 1, 2017	284,146			$	53.85			10,565			$	56.77
Granted	—			—				—			—
Exercised	—			—				—			—
Balance at March 31, 2017	284,146			$	53.85			10,565			$	56.77

(1) Value represents the weighted average exercise price.

X

- Definition

Tabular disclosure of the changes in outstanding nonvested Long-Term Incentive Plan ("LTIP") units, stock awards, phantom stock and stock units.

+ References

No definition available.

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X

- Definition

Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ 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 (h)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock appreciation rights awards that were outstanding at the beginning and end of the year, and the number of stock appreciation rights awards that were granted, exercised or converted, forfeited, and expired during the year.

+ 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 (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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