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Significant Concentrations (Details Textual) (USD $) In Millions, unless otherwise specified |  | 12 Months Ended |  |  | 12 Months Ended
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Dec. 31, 2008 | Dec. 31, 2011 SVA - NEC [Member] | Dec. 31, 2010 SVA - NEC [Member] | Dec. 31, 2013 SVA - NEC [Member] | Dec. 31, 2012 SVA - NEC [Member] | Dec. 31, 2013 Sales Revenue, Services, Net [Member] Customer A And Its Affiliates [Member] | Dec. 31, 2012 Sales Revenue, Services, Net [Member] Customer A And Its Affiliates [Member] | Dec. 31, 2011 Sales Revenue, Services, Net [Member] Customer A And Its Affiliates [Member] | Dec. 31, 2013 Sales Revenue, Services, Net [Member] Customer Concentration Risk [Member] | Dec. 31, 2012 Sales Revenue, Services, Net [Member] Customer Concentration Risk [Member] | Dec. 31, 2011 Sales Revenue, Services, Net [Member] Customer Concentration Risk [Member] | Dec. 31, 2013 Accounts Receivable [Member] Customer A And Its Affiliates [Member] | Dec. 31, 2012 Accounts Receivable [Member] Customer A And Its Affiliates [Member] | Dec. 31, 2013 Accounts Receivable [Member] Customer Concentration Risk [Member] | Dec. 31, 2012 Accounts Receivable [Member] Customer Concentration Risk [Member]
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  |  | 16.90% | 11.70% | 5.70% | 22.60% | 34.20% | 40.80% | 21.50% | 14.00% | 24.10% | 35.10%
Accounts Receivable Gross |  |  |  | $ 15.2 | $ 15.2 |  |  |  |  |  |  |  |  |  |
Allowance For Doubtful Accounts Receivable | 25.3 |  |  | 15.2 | 15.2 |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | $ 1.5 | $ 8.6 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.9) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References No definition available. + Details
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- Details
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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