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Condensed Consolidated Statements of Changes in Equity (USD $) In Thousands, except Share data | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Deficit [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Treasury Stock [Member] | Total Attributed To Shareholders [Member] | Non-controlling Interests [Member] | Redeemable Non-controlling Interests [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2012 | $ 244,471 | $ 81 | $ 942,825 | $ (680,411) | $ (287) | $ (17,734) | $ 244,474 | $ (3) | $ 3,163
Beginning Balance, shares at Dec. 31, 2012 |  | 7,826,674 |  |  |  | 245,000 |  |  |
Net income (loss) | 13,942 |  |  | 13,960 |  |  | 13,960 | (18) | 243
Net unrealized gain on securities available-for-sale | 233 |  |  |  | 233 |  | 233 |  |
Activity of noncontrolling interests, net |  |  |  |  |  |  |  |  | (1,264)
Repurchase of common shares | (10,356) |  |  |  |  | (10,356) | (10,356) |  |
Repurchase of common shares, shares |  | (60,000) |  |  |  | 60,000 |  |  |
Issuance of common stock related to employee stock transactions | 126 |  | 126 |  |  |  | 126 |  |
Issuance of common stock related to employee stock transactions, shares |  | 53,465 |  |  |  |  |  |  |
Taxes paid on stock-based compensation | (5,157) |  | (5,157) |  |  |  | (5,157) |  |
Stock-based compensation | 1,868 |  | 1,868 |  |  |  | 1,868 |  |
Ending Balance at Mar. 31, 2013 | 245,127 | 81 | 939,662 | (666,451) | (54) | (28,090) | 245,148 | (21) | 2,142
Ending Balance, shares at Mar. 31, 2013 |  | 7,820,139 |  |  |  | 305,000 |  |  |
Beginning Balance at Dec. 31, 2013 | 492,868 | 95 | 1,135,644 | (605,221) | (150) | (37,438) | 492,930 | (62) | 42,186
Beginning Balance, shares at Dec. 31, 2013 |  | 9,105,521 |  |  |  | 350,000 |  |  |
Net income (loss) | 21,928 | 0 | 0 | 21,938 | 0 | 0 | 21,938 | (10) | (161)
Net unrealized gain on securities available-for-sale | 63 | 0 | 0 | 0 | 63 | 0 | 63 | 0 | 0
Foreign currency translation adjustment | 24 | 0 | 0 | 0 | 24 | 0 | 24 | 0 | 0
Activity of noncontrolling interests, net | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | (38,158)
Issuance of common stock related to employee stock transactions | 105 | 0 | 105 | 0 | 0 | 0 | 105 | 0 | 0
Issuance of common stock related to employee stock transactions, shares |  | 57,619 |  |  |  |  |  |  |
Taxes paid on stock-based compensation | (7,401) | 0 | (7,401) | 0 | 0 | 0 | (7,401) | 0 | 0
Stock-based compensation | 2,509 | 0 | 2,509 | 0 | 0 | 0 | 2,509 | 0 | 0
Ending Balance at Mar. 31, 2014 | $ 510,096 | $ 95 | $ 1,130,857 | $ (583,283) | $ (63) | $ (37,438) | $ 510,168 | $ (72) | $ 3,867
Ending Balance, shares at Mar. 31, 2014 |  | 9,163,140 |  |  |  | 350,000 |  |  |

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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b,c) -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900 + Details
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- Definition Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580 + Details
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- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568447-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568740-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4590271-111686 + Details
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