Stock Based Compensation (Tables)

3 Months Ended

Mar. 28, 2015

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

Stock option activity for 2015 is summarized in the following table:



	Shares subject to option		Weighted average exercise price per share		Aggregate intrinsic value (in millions)
Outstanding at December 27, 2014	2,192,136			$48.95
Granted	7,132		62.40
Expired / Forfeited	(2,139	)	59.55
Exercised	(78,995	)	40.08
Outstanding at March 28, 2015	2,118,134			$49.31		$47.6
Exercisable at March 28, 2015	1,506,664			$41.67		$44.2

Time Vested, Performance Vested and Market Vested Awards Activity

The Company also has time-vested, performance-vested and market-vested awards. The activity for such awards in 2015 is summarized in the following table:



	Shares outstanding		Weighted average grant date fair value
December 27, 2014	651,849			$59.76
Time-vested shares granted	3,997		62.12
Market-vested shares granted	23,637		64.21
Performance shares granted	62,722		72.61
Performance share adjustments	490		79.34
Vested	(236,169	)	33.72
Forfeited	(2,465	)	72.78
March 28, 2015	504,061			$73.65

Schedule of Compensation Expense

Compensation expense related to the Company's stock based compensation is as follows:



(In millions)	March 28, 2015		March 29, 2014
Stock options	$	0.6	$	0.4
Time, performance and market vested awards	3.2		4.6