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Segments and Major Customers (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Financial information of business segments |  |  |  |
Revenues | $ 76,518 | $ 57,919 | $ 154,806 | $ 124,785
Segment operating expenses | 27,000 | 27,671 | 53,202 | 53,243
Segment operating income (loss) | 49,518 | 30,248 | 101,604 | 71,542
Segment reconciling items | (29,414) | (24,504) | (58,311) | (64,357)
Operating income (loss) | 20,104 | 5,744 | 43,293 | 7,185
Interest and other income (expense), net | (8,666) | (8,845) | (18,579) | (16,177)
Income (Loss) before income taxes | 11,438 | (3,101) | 24,714 | (8,992)
MID Segment |  |  |  |
Financial information of business segments |  |  |  |
Revenues | 58,664 | 49,456 | 119,820 | 109,131
Segment operating expenses | 9,517 | 10,344 | 19,437 | 20,228
Segment operating income (loss) | 49,147 | 39,112 | 100,383 | 88,903
CRI Segment |  |  |  |
Financial information of business segments |  |  |  |
Revenues | 12,771 | 7,914 | 25,674 | 14,797
Segment operating expenses | 8,290 | 6,072 | 15,919 | 10,960
Segment operating income (loss) | 4,481 | 1,842 | 9,755 | 3,837
CTO Segment |  |  |  |
Financial information of business segments |  |  |  |
Revenues | 0 | 0 | 0 | 0
Segment operating expenses | 4,518 | 6,347 | 8,789 | 13,518
Segment operating income (loss) | (4,518) | (6,347) | (8,789) | (13,518)
Other |  |  |  |
Financial information of business segments |  |  |  |
Revenues | 5,083 | 549 | 9,312 | 857
Segment operating expenses | 4,675 | 4,908 | 9,057 | 8,537
Segment operating income (loss) | $ 408 | $ (4,359) | $ 255 | $ (7,680)

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- Definition Total operating income loss for reporting segments. + References No definition available. + Details
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- Definition Segment reconciling items + References No definition available. + Details
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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 10 -Article 5 + 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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