v3.19.2

SHARE-BASED COMPENSATION - RSUs with Market Conditions (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2019 | Dec. 31, 2018
Share-based Compensation Restricted Stock Units With Market Conditions [Line Items] |  |  |  |
RSUs issued |  |  | 1,648 |
Reconciliation Of RSUs With Market Conditions [Abstract] |  |  |  |
RSUs beginning |  |  | 3,685 |
Number of RSUs granted |  |  | 1,648 |
Number of RSUs forfeited |  |  | (280) |
Number of RSUs vested |  |  | (1,367) |
RSUs ending |  |  | 3,686 | 3,685
Net RSUs increase (decrease) to APIC | $ 3,740 | $ 3,913 |  |
Restricted Stock Units With Market Conditions [Member] |  |  |  |
Share-based Compensation Restricted Stock Units With Market Conditions [Line Items] |  |  |  |
RSUs issued |  |  | 0 | 0
Reconciliation Of RSUs With Market Conditions [Abstract] |  |  |  |
RSUs beginning |  | 650 | 226 | 650
Number of RSUs granted |  |  | 0 | 0
Number of RSUs forfeited |  |  | (156) | (110)
Number of RSUs vested |  |  | 0 | (314)
RSUs ending |  |  | 70 | 226
Fair value of each RSU issued with market conditions |  |  | $ 0 | $ 0

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=109197908&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://fasb.org/us-gaap/role/ref/legacyRef -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=109197908&loc=d3e5070-113901 + Details
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- Definition Per share weighted average intrinsic value of equity-based compensation awards granted. Excludes stock and unit options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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=109197908&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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=109197908&loc=d3e5070-113901 + Details
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