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L. SHARE-BASED COMPENSATION - RESTRICTED STOCK UNITS (Details) - Restricted stock units - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Number of shares |  |  |
Outstanding, beginning balance | 152 | 21 | 33
Granted | 497 | 156 | 25
Released | (122) | (19) | (33)
Cancelled/Forfeited | (10) | (6) | (4)
Outstanding, ending balance | 517 | 152 | 21
Exercisable, ending balance | 25 |  |
Vested and expected to vest | 501 |  |
Weighted Average Share Price On Date Of Granted |  | $ 13.62 |
Weighted Average Share Price on Date of Release | $ 13.50 |  |
Weighted Average Fair Value |  |  |
Outstanding, beginning balance | 11.20 | 18.22 | $ 10.00
Granted | 15.73 | 11.06 | 18.45
Released | 14.08 | 18.24 | 10.57
Cancelled/Forfeited | 15.38 | 10.00 | 18.20
Outstanding, ending balance | 14.79 | $ 11.20 | $ 18.22
Exercisable, ending balance | 11.41 |  |
Vested and expected to vest | $ 14.77 |  |
Aggregate Intrinsic Value [Abstract] |  |  |
Aggregate intrinsic value, outstanding | $ 2,611 | $ 238 |
Granted | 7,815 | 1,722 |
Released | 1,644 | 257 |
Cancelled/Forfeited | 180 | 99 |
Aggregate intrinsic value, outstanding | 12,128 | $ 2,611 | $ 238
Exercisable, ending balance | 575 |  |
Vested and expected to vest | $ 11,752 |  |

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- Definition Intrinsic value of equity-based compensation awards vested and expected to vest. + References No definition available. + Details
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- Definition Intrinsic value of equity-based compensation awards outstanding, amount granted. + References No definition available. + Details
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- Definition Intrinsic value of equity-based compensation awards outstanding amount released. + References No definition available. + Details
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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