Subsequent Events	12 Months Ended
Sep. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Restructuring In October 2018, we announced a restructuring charge of approximately $18 million, which consists principally of termination benefits, substantially all of which we expect will be paid in fiscal 2019. With the growth opportunity in front of us in the Industrial Internet of Things and Augmented Reality, other strategic initiatives we’ve undertaken, and our continued commitment to operating margin improvement, we are realigning our workforce to shift investment to support these strategic, high growth opportunities. As this is a realignment of resources rather than a cost-savings initiative, we don’t expect this realignment will result in significant cost savings. Restricted Stock Unit Grants In October and November 2018, we granted restricted stock units (RSUs) valued at approximately $73.5 million to employees, including $31.9 million target value of performance-based RSUs, of which $31.7 million was granted to our executives, and $41.6 million of time-based RSUs granted to employees and executives. Substantially all of the executive performance-based RSUs are eligible to vest based upon annual performance measures. To the extent earned, these units will vest in three substantially equal installments on the later of November 15, 2019, 2020 and 2021, or the date the Compensation Committee determines the extent to which the applicable performance criteria have been achieved for each performance period. RSUs not earned for a period may be earned in the third period. The performance-based RSUs allow for upside based on 2019, 2020 and 2021 performance measures, and provide the opportunity to earn up to one times the number of performance-based RSUs (up to a maximum of 146,000 shares) if certain performance conditions are met. The time-based RSUs will vest in three substantially equal annual installments on November 15, 2019, 2020 and 2021. The time-based RSUs granted to our executives allow for upside based on a 2019 performance measure. Executives have the opportunity to earn up to one times or, for our CEO, two times the number of time-based RSUs granted (up to a maximum of 197,000 shares) if the upside performance measure is achieved. Any upside RSUs earned will vest in three substantially equal installments at the same times as the base RSUs. Borrowings In November 2018, we borrowed $80 million under our credit facility to fund working capital requirements, including 2018 year end incentive-based compensation accruals.

Subsequent Events

Restructuring

In October 2018, we announced a restructuring charge of approximately $18 million, which consists principally of termination benefits, substantially all of which we expect will be paid in fiscal 2019. With the growth opportunity in front of us in the Industrial Internet of Things and Augmented Reality, other strategic initiatives we’ve undertaken, and our continued commitment to operating margin improvement, we are realigning our workforce to shift investment to support these strategic, high growth opportunities. As this is a realignment of resources rather than a cost-savings initiative, we don’t expect this realignment will result in significant cost savings.

Restricted Stock Unit Grants

In October and November 2018, we granted restricted stock units (RSUs) valued at approximately $73.5 million to employees, including $31.9 million target value of performance-based RSUs, of which $31.7 million was granted to our executives, and $41.6 million of time-based RSUs granted to employees and executives.

Substantially all of the executive performance-based RSUs are eligible to vest based upon annual performance measures. To the extent earned, these units will vest in three substantially equal installments on the later of November 15, 2019, 2020 and 2021, or the date the Compensation Committee determines the extent to which the applicable performance criteria have been achieved for each performance period. RSUs not earned for a period may be earned in the third period. The performance-based RSUs allow for upside based on 2019, 2020 and 2021 performance measures, and provide the opportunity to earn up to one times the number of performance-based RSUs (up to a maximum of 146,000 shares) if certain performance conditions are met.

The time-based RSUs will vest in three substantially equal annual installments on November 15, 2019, 2020 and 2021. The time-based RSUs granted to our executives allow for upside based on a 2019 performance measure. Executives have the opportunity to earn up to one times or, for our CEO, two times the number of time-based RSUs granted (up to a maximum of 197,000 shares) if the upside performance measure is achieved. Any upside RSUs earned will vest in three substantially equal installments at the same times as the base RSUs.

Borrowings

In November 2018, we borrowed $80 million under our credit facility to fund working capital requirements, including 2018 year end incentive-based compensation accruals.