Equity Incentive Program (Tables)

9 Months Ended

Sep. 30, 2015

Schedule of Black-Scholes Option-Pricing Assumptions

The expense related to stock options granted in the nine months ended September 30, 2015 and 2014 was estimated on the date of grant using a Black-Scholes option-pricing model based on the assumptions shown in the table below.



	Nine Months Ended September 30,
	2015					2014
Risk-free interest rate	1.24	%	to	1.50	%	1.32		%	to	1.63		%
Dividend yield	—%					—%
Expected life (years)	4.5					4.5			to	5.3
Volatility	41.9	%	to	42.4	%	42.9		%	to	49.9		%
Fair value at date of grant	$6.59		to	$6.88		$	10.73		to	$	13.50

Schedule of SSAR and Stock Options Activity

The following table summarizes the Company's stock-settled stock appreciation right ("SSAR") and stock option activity for the nine months ended September 30, 2015 (in millions except share and per share amounts).



	SSARs							Stock Options
	Number of Shares		Weighted-Average Exercise Price		Aggregate Intrinsic Value		Weighted-Average Remaining Contractual Term (Years)	Number of Shares		Weighted-Average Exercise Price		Aggregate Intrinsic Value		Weighted-Average Remaining Contractual Term (Years)
Outstanding at December 31, 2014	1,064,383		$	20.81				1,327,990		$	29.31
Granted	—		—					1,955,707		18.01
Assumed from Audience acquisition	—		—					29,117		17.50
Exercised	(18,947	)	11.79					(2,100	)	12.65
Forfeited	(13,380	)	23.92					(128,282	)	20.91
Expired	(10,925	)	21.97					(2,966	)	27.82
Outstanding at September 30, 2015	1,021,131		$	20.93	$	0.9	6.0	3,179,466		$	22.61	$	0.9	6.3

Exercisable at September 30, 2015	695,248		$	19.52	$	0.9	5.4	221,060		$	29.29	$	—	5.5

Schedule of Restricted Stock Units Award Activity

The following table summarizes the Company's restricted stock unit ("RSU") balances for the nine months ended September 30, 2015.



	Share units		Weighted-average grant date fair value
Unvested at December 31, 2014	390,939		$	28.41
Granted	535,492		18.51
Assumed from Audience acquisition	432,254		17.92
Vested	(194,876	)	21.08
Forfeited	(49,242	)	20.42
Unvested at September 30, 2015	1,114,567		$	21.35