Stock-Based Compensation

9 Months Ended

Jun. 30, 2018

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

Stock-Based Compensation

Stock-Based Compensation

In February 2017, the Company’s shareholders approved the 2017 Incentive Stock and Awards Plan (the “2017 Stock Plan”). The 2017 Stock Plan replaced the 2009 Incentive Stock and Awards Plan (as amended, the “2009 Stock Plan”). While no new awards will be granted under the 2009 Stock Plan or its predecessor, the 2004 Incentive Stock and Awards Plan, awards previously made under these two plans that were outstanding as of the approval date of the 2017 Stock Plan will remain outstanding and continue to be governed by the provisions of the respective stock plan under which they were issued. At June 30, 2018, the Company had reserved 8,046,856 shares of Common Stock available for issuance to provide for the exercise of outstanding stock options and the issuance of Common Stock under incentive compensation awards, including awards issued prior to the effective date of the 2017 Stock Plan.

The Company recognizes stock-based compensation expense over the requisite service period for vesting of an award, or to an employee's eligible retirement date, if earlier and applicable. Total stock-based compensation expense, including cash-based liability awards, for the three and nine months ended June 30, 2018 was $6.7 million ($5.3 million net of tax) and $20.9 million ($16.3 million net of tax), respectively. Total stock-based compensation expense, including cash-based liability awards, for the three and nine months ended June 30, 2017 was $4.8 million ($3.0 million net of tax) and $19.2 million ($12.1 million net of tax), respectively.