|
FAIR VALUE MEASUREMENTS (Details) (USD $)
|
3 Months Ended |
6 Months Ended |
|
|
Mar. 31, 2015
|
Mar. 31, 2015
|
Sep. 30, 2014
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Proceeds from settlement of available-for-sale securities |
|
$ (8,891,000) |
|
| Gain on settlement of available-for-sale securities |
489,000 |
|
|
| Gains recorded in Other Income for settled contracts |
151 |
239 |
|
| Minimum [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Foreign currency contracts duration |
|
16 days |
|
| Maximum [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Foreign currency contracts duration |
|
196 days |
|
| Designated as Hedging Instrument [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Contracts Revenue |
|
5,378,000 |
|
| Contracts Weighted Average Rate Price |
|
$ 1.29 |
|
| Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Before Tax |
134,000 |
134,000 |
|
| Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax |
98,000 |
98,000 |
|
| Gain (loss) recorded in Other Income for settled contracts |
41,000 |
42,000 |
|
| Canadian Dollar Forward Contracts [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Derivative asset, notional amount |
2,408,000 |
2,408,000 |
|
| Canadian Dollar Forward Contracts [Member] | Not Designated as Hedging Instrument [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Derivative, average forward exchange rate |
1.27 |
1.27 |
|
| Fair Value, Inputs, Level 2 [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Insurance contracts fair value |
3,397,000 |
3,397,000 |
|
| Fair Value, Inputs, Level 2 [Member] | Canadian Dollar Forward Contracts [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Gain (loss) on foreign currency derivative instruments not designated as hedging instruments |
163,000 |
256,000 |
|
| Convertible Notes 2017 [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Debt instrument, interest rate, effective percentage |
4.00% |
4.00% |
|
| Convertible Notes 2017 [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Convertible debt, fair value disclosures |
129,813,000 |
129,813,000 |
|
| Senior Notes 2022 [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Debt instrument, interest rate, effective percentage |
5.25% |
5.25% |
5.25% |
| Senior Notes 2022 [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Convertible debt, fair value disclosures |
594,000,000 |
594,000,000 |
|
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Trading securities |
1,267,000 |
1,267,000 |
|
| Portion at Other than Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
|
| FAIR VALUE MEASUREMENTS (Details) [Line Items] |
|
|
|
| Trading securities |
$ 1,000,000 |
$ 1,000,000 |
|