Income Taxes - Additional Information (Details) - U.S. Internal Revenue Service [Member] - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Taxes [Line Items]
Tax (benefits) expense related to favorable completion of examination		$ (59.8)		$ (59.8)
Income tax examination tax year under examination			2015
Nontaxable changes in fair value of customer warrant liability		$ 9.3
Non deductible changes In fair value of customer warrant liability	$ 6.7		$ 6.5

Income taxes.

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- Definition

Non deductible changes in fair value of customer warrant liability.

+ References

No definition available.

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- Definition

NonTaxable changes in fair value of customer warrant liability.

+ References

No definition available.

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- Definition

Tax year being audited in the income tax examination, in CCYY format.

+ References

No definition available.

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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