Tax Benefit Expected to be Recognized in Fiscal Year

No definition available.

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Namespace Prefix:	elgx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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-Publisher FASB
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Data Type:	num:percentItemType
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Period Type:	duration

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

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-URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Apr. 03, 2019	Mar. 31, 2019	Aug. 09, 2018	Nov. 02, 2015
Income Tax Disclosure [Abstract]
Income tax benefit (expense)	$ (281)	$ 166	$ (3,495)	$ 277
Effective income tax rate	0.00%	0.00%	0.00%	0.00%
Debt Instrument [Line Items]
Income tax benefit (expense)	$ (281)	$ 166	$ (3,495)	$ 277
Tax benefit expected to be recognized this fiscal year			1,200
Convertible Senior Notes Due 2020
Debt Instrument [Line Items]
Debt instrument, stated interest rate							3.25%
Convertible notes
Income Tax Disclosure [Abstract]
Income tax benefit (expense)			3,400
Debt Instrument [Line Items]
Increase in taxes	4,900
Income tax benefit (expense)			3,400
Convertible notes \| Convertible Senior Notes Due 2020
Debt Instrument [Line Items]
Debt instrument, stated interest rate								3.25%
Convertible notes \| 5% Note
Income Tax Disclosure [Abstract]
Income tax benefit (expense)	(300)		(3,700)
Debt Instrument [Line Items]
Debt instrument, stated interest rate					5.00%	5.00%
Increase in taxes			4,900
Income tax benefit (expense)	$ (300)		$ (3,700)