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Restructuring Charges (Details) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Restructuring Cost and Reserve |  |  |  |  |
Restructuring charges | $ 0 | $ 0 | $ 2,206,000 |  | $ 0
Restructuring cost incurred to date |  |  | 9,500,000 |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning Balance |  |  | 906,000 |  |
Restructuring charges | 0 | 0 | 2,206,000 |  | 0
Payments |  |  | (2,059,000) |  |
Non-cash charge |  |  | (653,000) |  |
Ending Balance | 400,000 |  | 400,000 |  |
Employee Severance and Related Benefits |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring charges |  |  | 246,000 |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning Balance |  |  | 906,000 |  |
Restructuring charges |  |  | 246,000 |  |
Payments |  |  | (843,000) |  |
Non-cash charge |  |  | 0 |  |
Ending Balance | 309,000 |  | 309,000 |  |
Facilities |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Restructuring charges |  |  | 1,960,000 |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |
Beginning Balance |  |  | 0 |  |
Restructuring charges |  |  | 1,960,000 |  |
Payments |  |  | (1,216,000) |  |
Non-cash charge |  |  | (653,000) | [1] |
Ending Balance | 91,000 |  | 91,000 |  |
Minimum |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Company estimate of the aggregate restructuring cost |  |  | 6,000,000 |  |
Maximum |  |  |  |  |
Restructuring Cost and Reserve |  |  |  |  |
Company estimate of the aggregate restructuring cost |  |  | $ 10,000,000 |  |
[1] | The non-cash charge of $653 thousand is related to the termination of the Company's financing obligation associated with abandoning a construction asset at one of its facilities.

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- Definition Amount of costs incurred to date for the specified type of restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Emerging Issues Task Force (EITF) -Number 95-3 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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- Definition Amount expected to be charged against earnings in the current and future periods for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 20 -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 Emerging Issues Task Force (EITF) -Number 95-3 -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747 + Details
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