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SHARE-BASED COMPENSATION
 9 Months Ended
Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
SHARE-BASED COMPENSATION
SHARE-BASED COMPENSATION
A summary of our share-based compensation expense recognized during the nine months ended June 30, 2017 and 2016 and unrecognized compensation cost and remaining weighted-average service period as of June 30, 2017 and 2016 is as follows:
 
Nine Months Ended June 30,
(In thousands, except average service periods)
2017
 
2016
Share-based compensation recognized
$
10,657

 
$
8,224

Unrecognized compensation cost, net of estimated forfeitures
18,298

 
18,085

Remaining weighted-average service period (years)
1.7

 
1.9



Restricted Stock Units
During the nine months ended June 30, 2017, we granted to certain employees and our non-employee directors, restricted stock units that are subject to vesting conditions. The grant date fair value of these awards was based on the fair value of our common stock on the date of grant. A summary of our restricted stock activity for the nine months ended June 30, 2017 is as follows:
 
Number of Shares (000s)
 
Weighted Average Fair Value
Unvested as of October 1, 2016
1,515

 
$
21.96

Granted
1,126

 
7.92

Vested
(232
)
 
38.01

Forfeited
(97
)
 
16.32

Unvested as of June 30, 2017
2,312

 
13.74



Performance Units
During the nine months ended June 30, 2017, we granted to certain employees share-based awards that are subject to market-based performance conditions ("Performance Units"). The grant date fair value of these Performance Units was determined through use of the Monte Carlo simulation method. A summary of Performance Units stock activity for the nine months ended June 30, 2017 is as follows:
 
 
Number of Shares (000s)
 
Weighted Average Fair Value
Unvested as of October 1, 2016
426

 
$
26.69

Granted
360

 
8.50

Vested
(47
)
 
53.55

Forfeited
(61
)
 
24.87

Unvested as of June 30, 2017
678

 
15.31



Stock Options
A summary of stock option activity for the nine months ended June 30, 2017 is as follows:
 
Number of
Options
(000s)
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Life (Years)
 
Aggregate
Intrinsic
Value  (000s)
Outstanding as of October 1, 2016
617

 
$
35.47

 
3.4

 
$
(16,533
)
Granted
—

 
—

 
—

 
—

Exercised
—

 
—

 
—

 
—

Forfeited
—

 
—

 
—

 
—

Expired
(68
)
 
27.18

 
—

 
(1,297
)
Outstanding as of June 30, 2017
549

 
36.50

 
3.0

 
(15,570
)
Exercisable as of June 30, 2017
549

 
36.50

 
3.0

 
(15,570
)