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Debt (Tables) | 12 Months Ended
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Sep. 30, 2019
Debt Disclosure [Abstract] |
Long-term debt instruments | The following tables present our debt instruments outstanding, contractual maturities and interest expense:
| September 30, 2019 |  | September 30, 2018
| Gross Amount |  | Debt Discount and Issuance Costs |  | Carrying Amount |  | Gross Amount |  | Debt Discount and Issuance Costs |  | Carrying Amount
| (in thousands)
2019 Convertible Notes | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 195,000 |  |  | $ | (7,567 | ) |  | $ | 187,433 |
2019 Convertible Notes Embedded Derivative | — |  |  | — |  |  | — |  |  | 2,552 |  |  | — |  |  | 2,552 |
2024 Convertible Notes | 143,750 |  |  | (32,439 | ) |  | 111,311 |  |  | 143,750 |  |  | (37,892 | ) |  | 105,858 |
2025 Convertible Notes | 172,500 |  |  | (46,290 | ) |  | 126,210 |  |  | 172,500 |  |  | (52,764 | ) |  | 119,736 |
8.5% unsecured debt due 2024* | 1,092 |  |  | — |  |  | 1,092 |  |  | 1,304 |  |  | — |  |  | 1,304 |
CASHMAX secured borrowing facility* | 634 |  |  | (653 | ) |  | (19 | ) |  | — |  |  | — |  |  | — |
Total | $ | 317,976 |  |  | $ | (79,382 | ) |  | $ | 238,594 |  |  | $ | 515,106 |  |  | $ | (98,223 | ) |  | $ | 416,883 |
Less current portion | 214 |  |  | — |  |  | 214 |  |  | 197,748 |  |  | (7,567 | ) |  | 190,181 |
Total long-term debt | $ | 317,762 |  |  | $ | (79,382 | ) |  | $ | 238,380 |  |  | $ | 317,358 |  |  | $ | (90,656 | ) |  | $ | 226,702 |
* Amounts translated from Guatemalan quetzals and Canadian dollars as of the applicable period end. Certain disclosures omitted due to materiality considerations.
Schedule of maturities of debt |
| Schedule of Contractual Maturities
| Total |  | Less Than 1 Year |  | 1 - 3 Years |  | 3 - 5 Years |  | More Than 5 Years
| (in thousands)
2024 Convertible Notes* | 143,750 |  |  | — |  |  | — |  |  | 143,750 |  |  | — |
2025 Convertible Notes* | 172,500 |  |  | — |  |  | — |  |  | — |  |  | 172,500 |
8.5% unsecured debt due 2024 | 1,092 |  |  | 214 |  |  | 430 |  |  | 448 |  |  | — |
CASHMAX secured borrowing facility | $ | 634 |  |  | $ | — |  |  | $ | 634 |  |  | $ | — |  |  | $ | — |
| $ | 317,976 |  |  | $ | 214 |  |  | $ | 1,064 |  |  | $ | 144,198 |  |  | $ | 172,500 |
* Excludes the potential impact of embedded derivatives.
Schedule of Interest Expense |
| Fiscal Year Ended September 30,
| 2019 |  | 2018 |  | 2017
| (in thousands)
Term Loan Facility: |  |  |  |  |
Contractual interest expense | $ | — |  |  | $ | — |  |  | $ | 4,345 |
Amortization of debt discount and deferred financing costs | — |  |  | — |  |  | 359 |
Total interest expense | $ | — |  |  | $ | — |  |  | $ | 4,704 |
2019 Convertible Notes: |  |  |  |  |
Contractual interest expense | $ | 3,074 |  |  | $ | 4,144 |  |  | $ | 4,741 |
Amortization of debt discount and deferred financing costs | 7,556 |  |  | 9,952 |  |  | 10,759 |
Total interest expense | $ | 10,630 |  |  | $ | 14,096 |  |  | $ | 15,500 |
2024 Convertible Notes: |  |  |  |  |
Contractual interest expense | $ | 4,133 |  |  | $ | 4,133 |  |  | $ | 987 |
Amortization of debt discount and deferred financing costs | 5,452 |  |  | 5,057 |  |  | 1,067 |
Total interest expense | $ | 9,585 |  |  | $ | 9,190 |  |  | $ | 2,054 |
2025 Convertible Notes: |  |  |  |  |
Contractual interest expense | $ | 4,097 |  |  | $ | 1,559 |  |  | $ | — |
Amortization of debt discount and deferred financing costs | 6,468 |  |  | 2,383 |  |  | — |
Total interest expense | $ | 10,565 |  |  | $ | 3,942 |  |  | $ | — |

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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