The Company recognized compensation cost related to its stock-based compensation plans for the three months ended January 31, 2018 and 2017 as follows:

	Three Months Ended
	January 31,
(in thousands)		2018		2017
Omnibus Incentive Plans:
Stock options	$	7,289	$	5,702
Restricted shares		13,493		12,074
Phantom stock units		922		121
Employee Stock Purchase Plans		481		176
Employee Stock Purchase Incentive Plan		86		53
Atlanta Capital Plan		742		855
Parametric Plan		794		940
Parametric Phantom Incentive Plan		701		378
Atlanta Capital Phantom Incentive Plan		143		-
Total stock-based compensation expense	$	24,651	$	20,299

The total income tax benefit recognized for stock-based compensation arrangements was $5.7 million and $7.3 million for the three months ended January 31, 2018 and 2017, respectively.

Stock option transactions under the Company's 2013 Omnibus Incentive Plan (the 2013 Plan) and predecessor plans for the three months ended January 31, 2018 were as follows:

(share and intrinsic value figures in thousands)	Shares	Weighted-Average Exercise Price		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Options outstanding, beginning of period	17,587	$	32.63
Granted	1,708		50.67
Exercised	(1,407)		30.34
Forfeited/expired	(32)		41.37
Options outstanding, end of period	17,856	$	34.52	6.2	$	415,691
Options exercisable, end of period	9,097	$	30.14	4.3	$	251,605

The Company received $42.3 million and $25.9 million related to the exercise of options for the three months ended January 31, 2018 and 2017, respectively.

As of January 31, 2018, there was $55.5 million of compensation cost related to unvested stock options granted under the 2013 Plan and predecessor plans not yet recognized. That cost is expected to be recognized over a weighted-average period of 3.1 years.

A summary of the Company's restricted share activity for the three months ended January 31, 2018 under the 2013 Plan and predecessor plans is as follows:

		Weighted-
		Average
		Grant Date
(share figures in thousands)	Shares	Fair Value
Unvested, beginning of period	4,565	$	36.22
Granted	1,233		50.72
Vested	(1,122)		35.83
Forfeited	(44)		38.82
Unvested, end of period	4,632	$	40.15

As of January 31, 2018, there was $147.2 million of compensation cost related to unvested restricted shares granted under the 2013 Plan and predecessor plans not yet recognized. That cost is expected to be recognized over a weighted-average period of 3.3 years.

Phantom stock units issued to non-employee Directors under the 2013 Plan are accounted for as liability awards. During 2017, the 2013 Plan was amended such that non-employee Directors no longer have substantive service conditions for vesting of awards. Once the awards are granted, the non-employee Directors have the right to receive cash payment related to such awards upon separation from the Company (other than for cause). As a result, phantom units granted on or after November 1, 2017 are considered fully vested on grant date and the entire grant date fair value of these awards is recognized as compensation cost on the date of grant.

During the three months ended January 31, 2018, 13,945 phantom stock units were issued to non-employee Directors pursuant to the 2013 Plan. As of January 31, 2018, there was $0.2 million of compensation cost related to unvested phantom stock units granted under the 2013 Plan prior to November 2017 not yet recognized. That cost is expected to be recognized over a weighted-average period of one year.