The 2016 Omnibus Incentive Plan (the “2016” Plan”) has 8,000,000 shares authorized for issuance with approximately 673,957 shares remaining at October 31, 2018. The 2016 Plan replaced the 2010 Long-Term Incentive Plan (the “2010 Plan”) in January 2017 in connection with our IPO. While no new awards will be granted under the 2010 Plan, awards previously made under that plan that were outstanding as of the approval date of the 2016 Plan will remain outstanding and continue to be governed by the provisions of the 2010 Plan.

Stock-based compensation consists of service-based and performance-based share awards that typically vest over a period of one to five years from the date of grant, provided that the recipient is still our employee at the time of vesting. Our independent non-employee directors receive annual grants of service-based share awards that vest following 12 months of service. Prior to our IPO, we had granted stock options that have a term of up to 10 years and typically vest over a period of one to four years. No options have been granted subsequent to the IPO.

For fiscal years 2018, 2017 and 2016, the Company recorded stock-based compensation expense of $6.3 million, $26.6 million and $19.7 million, respectively, as selling, general and administrative expenses in the Company’s consolidated statements of income. The actual income tax benefit realized totaled $1.7 million, $10.1 million and $7.5 million for those same periods.

Restricted Stock Units Awards: The Company has granted restricted stock units to certain employees and non-employee directors.

The change in the number of unvested restricted stock units outstanding consisted of the following:

	Restricted Stock Units Outstanding			Weighted-Average Grant Date Fair Value Per Unit
Outstanding, October 31, 2017		59,192		$	25.44
Granted		417,197		$	26.18
Exercised		(17,637	)	$	25.37
Cancelled		(44,719	)	$	28.78
Outstanding, October 31, 2018		414,033		$	25.83

Restricted stock awards generally vest over a three to four-year service period following the grant date.

As of October 31, 2018, the Company had $8.3 million of unrecognized compensation expense related to restricted stock awards, which will be recognized over a weighted-average period of 3 years.

Performance Stock Units Awards: The Company has granted performance stock units to certain employees as follows:

	Performance Stock Units Outstanding		Weighted-Average Grant Date Fair Value Per Unit
Outstanding, October 31, 2017		73,101	$	27.36
Granted		121,167	$	22.70
Vested		—		—
Cancelled		—		—
Outstanding, October 31, 2018		194,268	$	24.45

Performance stock unit awards generally vest over a three to four-year service period following the grant date.

As of October 31, 2018, the Company had $2.1 million of unrecognized compensation expense related to performance stock awards, which will be recognized over a weighted-average period of 3.4 years.

Stock Option Awards: Prior to the Company’s IPO, stockholders were party to a shareholder’s agreement that was amended and restated in its entirety. Due to provisions in that shareholders agreement, a shareholder could put his or her shares to us under certain circumstances. As such, certain outstanding stock options were considered liability awards and were recorded at intrinsic value, which is the difference between the estimated fair value of the Company’s common stock and the option strike price and recognized as a liability on the Company’s consolidated balance sheet. Upon becoming a public entity, the Company recorded the liability awards at fair value. As a result of the IPO, the aforementioned put rights expired and the outstanding options were no longer considered liability awards and the fair value of the options were reclassified to shareholders’ equity. The fair value of the liability share awards was $26.5 million on the date of the Company’s IPO.

	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value of In-the- Money Options
Outstanding at October 31, 2017		3,063,668		$	5.80		6.8	$	61,282
Granted		—			—		—		—
Exercised		(1,757,984	)		5.53		—		—
Cancelled		(499,934	)		4.61		—		—
Outstanding at October 31, 2018		805,750		$	7.12		6.3	$	3,055
Exercisable at October 31, 2018		644,134		$	7.32		—	$	2,311

The aggregate intrinsic value above reflects the total pre-tax intrinsic value (the difference between the per share fair value of the Company’s stock and the exercise price of the stock options, multiplied by the number of in-the-money stock options) that would have been received by the option holders had all option holders exercised their options on October 31, 2018 and October 31, 2017. The intrinsic value of the Company’s stock options changes based on the changes in the share price of the Company’s common stock.

As of October 31, 2018, the Company had $0.8 million of unrecognized compensation expense related to stock options, which will be recognized over a weighted-average period of 1.2 years.