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Segments and Major Customers (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014 | Mar. 31, 2013
Financial information of business segments |  |
Revenues | $ 78,288 | $ 66,866
Segment operating expenses | 26,202 | 25,572
Segment operating income (loss) | 52,086 | 41,294
Operating income (loss) | 23,189 | 1,441
Interest and other income (expense), net | (9,913) | (7,332)
Income (Loss) before income taxes | 13,276 | (5,891)
MID Segment |  |
Financial information of business segments |  |
Revenues | 61,156 | 59,674
Segment operating expenses | 9,920 | 9,884
Segment operating income (loss) | 51,236 | 49,790
CRI Segment |  |
Financial information of business segments |  |
Revenues | 12,903 | 6,883
Segment operating expenses | 7,629 | 4,888
Segment operating income (loss) | 5,274 | 1,995
CTO Segment |  |
Financial information of business segments |  |
Revenues | 0 | 0
Segment operating expenses | 4,271 | 7,171
Segment operating income (loss) | (4,271) | (7,171)
Other |  |
Financial information of business segments |  |
Revenues | 4,229 | 309
Segment operating expenses | 4,382 | 3,629
Segment operating income (loss) | (153) | (3,320)
Reconciling Items |  |
Financial information of business segments |  |
Operating income (loss) | $ (28,897) | $ (39,853)

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- Definition Total operating income loss for reporting segments. + References No definition available. + Details
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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