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Management Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2017

Total shares available for awards and total shares subject to outstanding awards are as follows:



	As of December 31, 2017
	Shares Available for Awards	Shares Subject to Outstanding Awards
2009 GIP	5,663,628	1,701,713

The Company realized income tax benefits from stock option exercises and RSU vestings as follows:

A summary of changes in nonvested performance-based RSUs outstanding is as follows:



	Number of Units		Weighted Average Grant Date Fair Value
	(In thousands)		(In $)
As of December 31, 2016	1,085		53.36
Granted	314		83.52
Additional performance-based RSUs granted⁽¹⁾	225		48.70
Vested	(527	)	49.36
Canceled	(150	)	53.21
Forfeited	(87	)	62.36
As of December 31, 2017	860		64.71

______________________________


⁽¹⁾	Represents additional performance-based RSU grants in 2014 that were awarded in 2017 as a result of achieving internal profitability targets.

A summary of changes in nonvested time-based RSUs outstanding is as follows:



	Number of Units		Weighted Average Grant Date Fair Value
	(In thousands)		(In $)
As of December 31, 2016	344		67.42
Granted	159		86.20
Vested	(123	)	67.78
Forfeited	(29	)	68.29
As of December 31, 2017	351		75.75

The fair value of shares vested for performance-based RSUs is as follows:

The fair value of shares vested for time-based RSUs is as follows: