Stock-Based Compensation

The following table summarizes the components of stock-based compensation expense included in general and administrative expenses in the Consolidated Statements of Comprehensive Income:



	Three months ended September 30,						Nine months ended September 30,
	2017			2016			2017			2016
	(In millions)
Total stock-based compensation expense:
Equity classified awards expense	$	1.3		$	2.6		$	9.0		$	8.3
Liability classified awards expense	—			(0.5		)	(1.1		)	0.6
Total pre-tax stock-based compensation expense	1.3			2.1			7.9			8.9
Book income tax benefit	(0.5		)	(0.7		)	(3.0		)	(3.3		)
Total stock-based compensation expense, net of tax	$	0.8		$	1.4		$	4.9		$	5.6

As of September 30, 2017, total unrecognized compensation expense of $17.6 million related to restricted stock and restricted stock units and $3.2 million related to stock options are expected to be recognized over a weighted average period of 2.1 years for restricted stock and restricted stock units and 1.9 years for stock options.

Fair Value Assumptions

The Company granted 537,030 stock options during the nine months ended September 30, 2017 for which the fair value was estimated using a Black-Scholes option pricing model. The following summarizes the assumptions used in the Black-Scholes model:



Risk-free interest rate	1.9	%
Weighted average historical volatility	22.9	%
Dividend yield	7.3	%
Expected years until exercise	4.5
Weighted average fair value of options granted	$4.31

The Company granted 350,000 performance-based stock options and 175,000 performance-based restricted stock units during the three months ended September 30, 2017 for which the fair value was estimated using a Monte Carlo simulation method. The following summarizes the assumptions used in estimating the fair values:



Risk-free interest rate	1.6	%
Weighted average historical volatility	30.0	%
Dividend yield	9.6	%
Expected years until exercise	3.4
Weighted average fair value of options granted	$3.07
Weighted average fair value of restricted stock units granted	$10.19

Equity Classified Awards - Stock Options

Stock option balances at September 30, 2017, and activity for the nine months ended September 30, 2017 were as follows:



	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in Years)	Aggregate Intrinsic Value (in Millions)
Outstanding at December 31, 2016	701,134		$	80.04
Granted	887,030		48.35
Exercised	(64,916	)	40.59
Expired	(58,217	)	84.43
Forfeited	(171,847	)	65.82
Outstanding at September 30, 2017	1,293,184		61.98		7.3	$	0.9
Vested at September 30, 2017 and Expected to Vest	1,111,610		64.50		7.0	$	0.6
Exercisable at September 30, 2017	456,308		$	81.35	3.3	$	0.0

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (the difference between the closing stock price of the Company’s common stock on the last trading day of the third quarter of 2017 and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on September 30, 2017. The aggregate intrinsic value will change based on the fair market value of the Company’s common stock and the number of in-the-money options.

Equity Classified Awards - Restricted Stock and Restricted Stock Units

Outstanding balances as of September 30, 2017, and activity related to restricted stock and restricted stock units for the nine months ended September 30, 2017 were as follows:



	Restricted Stock		Weighted Average Grant Date Fair Value		Restricted Stock Units		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2016	235,472		$	92.81	34,058		$	93.95
Granted	208,460		52.08		275,578		22.37
Released	(89,911	)	88.65		(12,683	)	81.63
Forfeited	(73,409	)	79.44		—		—
Outstanding at September 30, 2017	280,612		$	67.38	296,953		$	28.39

Liability Classified Awards - Long-Term Incentive Awards

The Company has granted cash long-term incentive awards (“LTIP awards”) to certain employees. Annual LTIP awards vest over a three-year period and are determined using a multiplier from 0% to 200% of the target award based on the total stockholder return of DineEquity common stock compared to the total stockholder returns of a peer group of companies. Although LTIP awards are only paid in cash, since the multiplier is based on the price of the Company's common stock, the awards are considered stock-based compensation in accordance with U.S. GAAP and are classified as liabilities. For the three months ended September 30, 2017, no expense was recognized. For the three months ended September 30, 2016, a credit of $0.5 million was included in total stock-based compensation expense related to LTIP awards. For the nine months ended September 30, 2017 and 2016, a credit of $1.0 million and an expense of $0.6 million, respectively, were included in total stock-based compensation expense related to LTIP awards. At September 30, 2017 and December 31, 2016, liabilities of less than $0.1 million and liabilities of $1.2 million, respectively, related to LTIP awards were included as part of accrued employee compensation and benefits in the Consolidated Balance Sheets.