Income Taxes - Summary of Valuation Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Valuation Allowance
Valuation allowance at beginning of year	$ 292,217	$ 211,078	$ 253,549
Mergers and acquisitions, net	0	418	0
Deconsolidation of AquaBounty	(3,504)	0	0
Establishment of deferred taxes for subsidiaries included in discontinued operations	8,592	0	0
Current year continuing operations	40,681	107,284	17,735
Discontinued operations treated as asset sales	10,585	3,832	6,940
Provisional impact of the Tax Act	0	0	(87,473)
Equity component of long-term debt	0	(13,367)	0
Change in deferred state tax rate	0	(8,666)	0
Changes in foreign tax rates and foreign tax reforms	0	0	1,494
Foreign currency translation adjustment	(75)	(885)	990
Valuation allowance at end of year	349,008	292,217	211,078
Adoption of ASC 842
Valuation Allowance
Adoption of new accounting pronouncements	512	0	0
Adoption of ASC 606
Valuation Allowance
Adoption of new accounting pronouncements	0	(7,477)	0
Adoption of ASU 2016-09
Valuation Allowance
Adoption of new accounting pronouncements	$ 0	$ 0	$ 17,843

Change in the valuation allowance for deferred tax assets as a result of current year operations.

No definition available.

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- Definition

Change in the valuation allowance for deferred tax assets as a result of mergers and acquisitions, net.

+ References

No definition available.

+ Details

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- Definition

Change in valuation allowance for deferred tax assets as a result of the change in deferred state tax rate.

+ References

No definition available.

+ Details

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- Definition

Change in valuation allowance for deferred tax assets as a result of the equity component of long-term debt.

+ References

No definition available.

+ Details

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- Definition

Change in the valuation allowance for deferred tax assets as a result of foreign currency translation adjustments.

+ References

No definition available.

+ Details

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- Definition

Change in the valuation allowance for deferred tax assets resulting from the adoption of a recently issued accounting pronouncement.

+ References

No definition available.

+ Details

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- Definition

Change in the valuation allowance for deferred tax assets resulting from enacted changes in foreign tax rates.

+ References

No definition available.

+ Details

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- Definition

Valuation Allowance, Deferred Tax Asset, Deconsolidation

+ References

No definition available.

+ Details

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- Definition

Valuation Allowance, Deferred Tax Assets, Discontinued Operations Treated As Asset Sales

+ References

No definition available.

+ Details

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- Definition

Valuation Allowance, Deferred Tax Assets, Establishment Of Deferred Taxes For Subsidiaries Included In Discontinued Operations

+ References

No definition available.

+ Details

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- Definition

Valuation Allowance, Tax Cuts and Jobs Act, Change in tax Rate, Deferred Tax Asset, Amount

+ References

No definition available.

+ Details

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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