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Subsequent Events (Narrative) (Details) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2016 USD ($) installment shares | Oct. 31, 2016 USD ($) | Jul. 31, 2005 | Sep. 30, 2016 installment shares
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  |  |  | 4 years |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  |  | 2,484,000
Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  | 3 years |  |  |
TSR Units [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | [1] |  |  |  | 326,000
Target multiplier (up to) |  |  |  |  | 2
TSR Units [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of Equal Annual Installments | installment |  | 3 |  |  |
Performance-based Award [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | [2] |  |  |  | 343,000
Performance-based Award [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of Equal Annual Installments | installment |  | 3 |  |  |
Time-based Award [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | [2] |  |  |  | 1,815,000
Maximum [Member] | TSR Units [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  |  | 652,000
Maximum [Member] | Performance-based Award [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  |  | 343,000
Maximum [Member] | Performance-based Award [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  | 495,000 |  |  |
Executive Officer [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Target multiplier (up to) |  |  |  |  | 1
Executive Officer [Member] | Maximum [Member] | Performance-based Award [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  | 305,000 |  |  |
Korea | Subsequent Event [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Income Tax Assessment Paid | $ |  |  | $ 12.0 |  |
Share-based Compensation Award, Tranche One [Member] | Time-based Award [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  |  | 64,000
Share-based Compensation Award, Tranche One [Member] | Executive Officer [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Target multiplier (up to) |  | 1 |  |  |
Share-based Compensation Award, Tranche Two [Member] | Time-based Award [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  |  |  |  | 121,000
Number of Equal Annual Installments | installment |  |  |  |  | 2
Share-based Compensation Award, Tranche Two [Member] | Executive Officer [Member] | Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Target multiplier (up to) |  | 2 |  |  |
Line of Credit [Member] | Subsequent Event [Member] |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Proceeds from (Repayments of) Lines of Credit | $ |  | $ 60.0 |  |  |
[1] | The TSR units were granted to our executive officers pursuant to the terms described below.
[2] | The service-based RSUs were issued to employees, our executive officers, our directors and a consultant. Executive officers may earn up to one or, for our CEO, two times the number of time-based RSUs (up to a maximum of 343 thousand shares) if certain performance conditions are met. Of the service-based RSUs, approximately 64 thousand shares will vest in one installment on or about the anniversary of the date of grant. Approximately 121 thousand shares will vest in two substantially equal annual installments on or about the anniversary of the date of grant. All other service-based RSUs will vest in three substantially equal annual installments on or about the anniversary of the date of grant. The performance-based RSUs will vest in three substantially equal installments on the later of November 15, 2016, November 15, 2017 and November 15, 2018, or the date the Compensation Committee determines the extent to which the applicable performance criteria have been achieved.

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