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LONG-TERM BORROWINGS (Details) (USD $) | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |  | 9 Months Ended |  | 1 Months Ended | 9 Months Ended |  | 9 Months Ended |  | 1 Months Ended | 9 Months Ended |  | 1 Months Ended | 9 Months Ended |  | 3 Months Ended | 9 Months Ended |  |
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Mar. 31, 2011 | Jul. 29, 2012 | Jul. 31, 2011 | Jul. 29, 2012 | Jul. 31, 2011 | Apr. 29, 2012 | Oct. 30, 2011 | Mar. 31, 2011 Credit Facility [Member] | Jul. 29, 2012 Amended Credit Facility [Member] | Mar. 31, 2011 Amended Credit Facility [Member] | Mar. 31, 2011 3.25% convertible senior notes due on April 1, 2016 [Member] | Jul. 29, 2012 3.25% convertible senior notes due on April 1, 2016 [Member] | Oct. 30, 2011 3.25% convertible senior notes due on April 1, 2016 [Member] | Jul. 29, 2012 Term Loan [Member] | Oct. 30, 2011 Term Loan [Member] | Jun. 30, 2011 5.5% convertible senior notes due on October 1, 2014 [Member] | Mar. 31, 2011 5.5% convertible senior notes due on October 1, 2014 [Member] | Sep. 30, 2009 5.5% convertible senior notes due on October 1, 2014 [Member] | Jul. 29, 2012 5.5% convertible senior notes due on October 1, 2014 [Member] | Oct. 30, 2011 5.5% convertible senior notes due on October 1, 2014 [Member] | Apr. 30, 2011 3.09% capital lease obligation payable through March 2016 [Member] | Jul. 29, 2012 3.09% capital lease obligation payable through March 2016 [Member] | Oct. 30, 2011 3.09% capital lease obligation payable through March 2016 [Member] | Jul. 29, 2012 4.75% financing loan with customer [Member] | Jul. 31, 2011 4.75% financing loan with customer [Member] | Jul. 29, 2012 4.75% financing loan with customer [Member] | Jul. 31, 2011 4.75% financing loan with customer [Member] | Oct. 30, 2011 4.75% financing loan with customer [Member] | Jan. 31, 2010 4.75% financing loan with customer [Member]
Long-term borrowings [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt and capital lease obligations |  | $ 178,459,000 |  | $ 178,459,000 |  |  | $ 158,160,000 |  |  |  |  | $ 115,000,000 | $ 115,000,000 | $ 24,375,000 | $ 0 |  |  |  | $ 22,054,000 | $ 22,054,000 |  | $ 16,198,000 | $ 19,218,000 | $ 832,000 |  | $ 832,000 |  | $ 1,888,000 |
Less current portion |  | 7,470,000 |  | 7,470,000 |  |  | 5,583,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt and capital lease obligations non current |  | 170,989,000 |  | 170,989,000 |  |  | 152,577,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate percentage (in hundredths) |  |  |  |  |  |  |  |  |  |  |  | 3.25% |  |  |  |  |  |  | 5.50% |  |  | 3.09% |  | 4.75% |  | 4.75% |  |  |
Variable interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of debt |  |  |  |  |  |  |  |  |  |  |  | Apr. 01, 2016 |  | Mar. 02, 2017 |  |  |  |  | Oct. 01, 2014 |  |  | Mar. 31, 2016 |  |  |  |  |  |  |
Original face amount of debt |  |  |  |  |  | 25,000,000 |  |  |  |  |  |  |  | 25,000,000 |  |  |  | 57,500,000 |  |  | 21,200,000 |  |  |  |  |  |  |  | 3,700,000
Periodic payments |  |  |  |  |  |  |  |  |  |  |  |  |  | 600,000 |  |  |  |  |  |  |  | 400,000 |  |  |  |  |  |  |
Frequency of periodic payment |  |  |  |  |  |  |  |  |  |  |  |  |  | quarterly payments |  |  |  |  |  |  |  | per month |  |  |  |  |  |  |
Amortization period of debt |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |
Face amount of each note converted |  |  |  |  |  |  |  |  |  |  | 1,000 |  |  |  |  |  |  | 1,000 |  |  |  |  |  |  |  |  |  |  |
Number of shares issued for each note converted (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 147.529 | 147.529 |  |  |  |  |  |  |  |  |  |  |  |
Number of shares each note is convertible to (in shares) |  |  |  |  |  |  |  |  |  |  | 96.3879 |  |  |  |  |  |  | 196.7052 |  |  |  |  |  |  |  |  |  |  |
Conversion price per share (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 10.37 |  |  |  |  |  |  | $ 5.08 |  |  |  |  |  |  |  |  |  |  |
Proceeds from notes payable, net |  |  |  |  |  |  |  |  |  |  | 110,700,000 |  |  |  |  |  |  | 54,900,000 |  |  |  |  |  |  |  |  |  |  |
Capital lease obligations repaid | 19,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate commitments of the lenders |  |  |  |  |  |  |  | 65,000,000 |  | 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum amount of financed capital assets |  |  |  |  |  |  |  |  | 75,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of investment basket |  |  |  |  |  |  |  | 15,000,000 | 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount outstanding under credit facility |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remaining borrowing capacity under credit facility |  |  |  |  |  |  |  |  | 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued to extinguish debt (in shares) |  |  | 738,000 |  | 5,229,000 |  |  |  |  |  |  |  |  |  |  | 700,000 | 4,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued to extinguish debt |  |  | 6,468,000 |  | 45,637,000 |  |  |  |  |  |  |  |  |  |  | 6,500,000 | 39,200,000 |  |  |  |  |  |  |  |  |  |  |  |
Cash paid for convertible notes acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,200,000 | 19,700,000 |  |  |  |  |  |  |  |  |  |  |  |
Cash paid for each note converted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 647 | 647 |  |  |  |  |  |  |  |  |  |  |  |
Face amount of debt repurchased |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,000,000 | 30,400,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt extinguishment loss |  | 0 | (4,973,000) | 0 | (35,259,000) |  |  |  |  |  |  |  |  |  |  | (5,000,000) | (30,100,000) |  |  |  |  |  |  |  |  |  |  |  |
Write off of deferred financing fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 300,000 | 1,700,000 |  |  |  |  |  |  |  |  |  |  |  |
Amount payable through the end of lease term |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17,200,000 |  |  |  |  |  |  |
Interest included in lease payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  |  |  |
Value of product shipped for repayment of loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000 | $ 300,000 | $ 900,000 | $ 900,000 |  |
Estimated date of loan repayment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2013-11-13 |  |  |

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- Definition The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section H + Details
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- Definition Obligation related to long-term debt (excluding convertible debt) and capital leases, the portion which is due in one year or less in the future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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