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Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Thousands | Total | Series D convertible preferred stock | Common Stock | Preferred Stock Series D convertible preferred stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Income (Loss) | Treasury Stock | Total Attributed To Stockholders | Total Attributed To Stockholders Series D convertible preferred stock | Non- controlling Interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at Dec. 31, 2015 |  |  | 8,398,944 | 0 |  |  |  | 1,214,144 |  |  |
Beginning Balance at Dec. 31, 2015 | $ 509,457 |  | $ 96 | $ 0 | $ 1,140,875 | $ (472,614) | $ (1,034) | $ (157,699) | $ 509,624 |  | $ (167)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Net income | 20,451 |  |  |  |  | 20,451 |  |  | 20,451 |  |
Net unrealized gain (loss) on securities available-for-sale | 281 |  |  |  |  |  | 281 |  | 281 |  |
Foreign currency translation adjustments | 569 |  |  |  |  |  | 569 |  | 569 |  |
Cash dividends declared | (7,452) |  |  |  | (7,452) |  |  |  | (7,452) |  |
Repurchases of common shares | (62,139) |  | $ (6) |  | (47,133) |  |  | $ (15,000) | (62,139) |  |
Repurchases of common shares (in shares) |  |  | (732,713) |  |  |  |  | (176,204) |  |  |
Issuance of common shares related to employee stock transactions (in shares) |  |  | 51,832 |  |  |  |  |  |  |  |
Issuance of common shares related to employee stock transactions | 964 |  | $ 1 |  | 963 |  |  |  | 964 |  |
Taxes paid on stock-based compensation | (1,332) |  |  |  | (1,332) |  |  |  | (1,332) |  |
Stock-based compensation | 6,620 |  |  |  | 6,620 |  |  |  | 6,620 |  |
Tax deficiencies from stock-based compensation | (1,313) |  |  |  | (1,313) |  |  |  | (1,313) |  |
Ending Balance (in shares) at Jun. 30, 2016 |  |  | 7,718,063 | 0 |  |  |  | 1,390,348 |  |  |
Ending Balance at Jun. 30, 2016 | 466,106 |  | $ 91 | $ 0 | 1,091,228 | (452,163) | (184) | $ (172,699) | 466,273 |  | (167)
Beginning Balance at Dec. 31, 2015 | 73,864 |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Redeemable Non-controlling Interests [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 119 |  |  |  |  |  |  |  |  |  |
Activity of noncontrolling interests, net | (46,838) |  |  |  |  |  |  |  |  |  |
Ending Balance at Jun. 30, 2016 | 27,145 |  |  |  |  |  |  |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2016 |  |  | 5,889,013 | 0 |  |  |  | 3,230,045 |  |  |
Beginning Balance at Dec. 31, 2016 | 321,673 |  | $ 91 | $ 0 | 1,090,331 | (424,279) | (224) | $ (344,246) | 321,673 |  | 0
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Cumulative effect adjustment for adoption of ASU 2016-09 | 1,051 |  |  |  |  | 1,051 |  |  | 1,051 |  |
Net income | 12,722 |  |  |  |  | 12,722 |  |  | 12,722 |  |
Net unrealized gain (loss) on securities available-for-sale | 134 |  |  |  |  |  | 134 |  | 134 |  |
Foreign currency translation adjustments | 2 |  |  |  |  |  | 2 |  | 2 |  |
Activity of noncontrolling interests, net | 15,731 |  |  |  |  |  |  |  |  |  | 15,731
Issuance of stock, net of offering costs (in shares) |  |  | 1,046,500 | 1,150,000 |  |  |  |  |  |  |
Issuance of stock, net of offering costs | 109,320 | $ 110,837 | $ 10 | $ 110,837 | 109,310 |  |  |  | 109,320 | $ 110,837 |
Dividends | (4,168) |  |  |  | (4,168) |  |  |  | (4,168) |  |
Issuance of common stock for acquisition of business (in shares) |  |  | 213,669 |  |  |  |  |  |  |  |
Issuance of common stock for acquisition of business | 21,740 |  | $ 2 |  | 21,738 |  |  |  | 21,740 |  |
Cash dividends declared | (6,670) |  |  |  | (6,670) |  |  |  | (6,670) |  |
Issuance of common shares related to employee stock transactions (in shares) |  |  | 68,726 |  |  |  |  |  |  |  |
Issuance of common shares related to employee stock transactions | 817 |  | $ 1 |  | 816 |  |  |  | 817 |  |
Taxes paid on stock-based compensation | (3,029) |  |  |  | (3,029) |  |  |  | (3,029) |  |
Stock-based compensation | 9,173 |  |  |  | 9,173 |  |  |  | 9,173 |  |
Ending Balance (in shares) at Jun. 30, 2017 |  |  | 7,217,908 | 1,150,000 |  |  |  | 3,230,045 |  |  |
Ending Balance at Jun. 30, 2017 | 589,333 |  | $ 104 | $ 110,837 | $ 1,217,501 | $ (410,506) | $ (88) | $ (344,246) | $ 573,602 |  | $ 15,731
Beginning Balance at Dec. 31, 2016 | 37,266 |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Redeemable Non-controlling Interests [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | 1,051 |  |  |  |  |  |  |  |  |  |
Activity of noncontrolling interests, net | 19,019 |  |  |  |  |  |  |  |  |  |
Ending Balance at Jun. 30, 2017 | $ 57,336 |  |  |  |  |  |  |  |  |  |

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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 55 -Paragraph 4I -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4590271-111686 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=96868048&loc=SL4568740-111683 Reference 3: 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=96868048&loc=SL4568447-111683 + Details
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- Definition Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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