Available-For-Sale Securities, Number Of Shares Acquired

No definition available.

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- Definition

The percent of available-for-sale securities owned that were previously subject to a lock-up period with respect to the sale or transfer of the shares of common stock that may be transferred.

+ References

No definition available.

+ Details

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- Definition

The maximum percent increase in the unsold permitted amount in future quarters.

+ References

No definition available.

+ Details

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117546-209714

+ Details

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- Definition

Amount of dividend income on nonoperating securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a))
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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INVESTMENT IN EQUITY SECURITIES (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2016	Dec. 31, 2018
Marketable Securities [Line Items]
Number of investment shares acquired (in shares)			4.1
Investment in equity securities	$ 38,419			$ 36,181
Unrealized gain (loss) from change in fair value	2,238	$ (7,501)
Investment income, dividend	$ 600	$ 600
Maximum allowable increase, percent	50.00%
Maximum
Marketable Securities [Line Items]
Investment shares, transfer restrictions, percent (no more than)	25.00%