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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Additional Shares

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Unused Shares

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- Definition

Share-Based Compensation Arrangement By Share Based Payment Award, Number Of Shares Exchanged In Modification

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Options, Grants In Period, Grant Date Premium On Exercise Price

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

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- Definition

Amount of additional cost recognized for award under share-based payment arrangement from occurrence of event accelerating recognition of cost.

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No definition available.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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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.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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.

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No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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No definition available.

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Share-Based Compensation Plans (Narrative) (Details) - USD ($)	1 Months Ended								12 Months Ended
	Dec. 31, 2019	May 31, 2019	Mar. 31, 2019	Mar. 31, 2018	Feb. 28, 2018	May 31, 2016	Mar. 31, 2015	Apr. 30, 2012	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years
Contractual term									10 years
Weighted-average grant-date fair value per share (in dollars per share)									$ 1.13	$ 1.04	$ 1.54
Unrecognized compensation cost														$ 3,500,000
Unrecognized compensation costs, recognized over a weighted average period									1 year 10 months 24 days
Share modification and incremental fair value expense	$ 1,500,000
Accelerated costs	$ 1,700,000
Compensation cost for share-based payments									$ 15,600,000	$ 13,800,000	$ 24,200,000
Merger Agreement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Transaction costs														$ 44,000,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years
Contractual term									10 years
Options, grant date premium on exercise price									25.00%	25.00%	30.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years
Shares exchanged (in shares)	2,083,872
Outstanding shares (in shares)	4,398,000								4,398,000	4,998,000				4,398,000
Forfeited, weighted average grant-date fair value (in dollars per share)									$ 3.40
Fair value vested during period									$ 8,400,000
Granted (in shares)									3,909,000
Granted, weighted-average grant-date fair value (in dollars per share)									$ 2.81
Vested (in shares)									2,123,000
Nonvested, ending balance (in shares)	4,398,000								4,398,000	4,998,000
Restricted Stock Units (RSUs) \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									1 year
Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years	3 years	3 years	3 years	3 years
Shares exchanged (in shares)	3,276,774
Outstanding shares (in shares)	2,982,000								2,982,000	3,177,000				2,982,000
Forfeited, weighted average grant-date fair value (in dollars per share)									$ 3.62
Granted (in shares)									4,689,000
Granted, weighted-average grant-date fair value (in dollars per share)									$ 1.64
Vested (in shares)									413,000
Nonvested, ending balance (in shares)	2,982,000								2,982,000	3,177,000
Restricted Stock Units and Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs, recognized over a weighted average period									1 year 11 months 23 days
Unrecognized compensation cost														$ 13,800,000
Restricted Stock Units - Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding shares (in shares)										0
Unrecognized compensation cost														$ 0
Compensation cost for share-based payments									$ 0	$ 100,000	$ 800,000
Vested (in shares)										163,198
Nonvested, ending balance (in shares)										0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period													3 years
Shares exchanged (in shares)	4,808,534
Shares cancelled to satisfy withholding tax obligations (in shares)	1,400,010
Outstanding shares (in shares)	3,408,524								3,408,524					3,408,524
Unrecognized compensation cost														$ 5,700,000
Nonvested, ending balance (in shares)	3,408,524								3,408,524
2019 \| Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years
Forfeited, weighted average grant-date fair value (in dollars per share)									$ 2.63
2019 \| Restricted Stock Units - Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost for share-based payments									$ 400,000
2019 \| Performance Restricted Stock Units - Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			200,000	200,000
Compensation cost for share-based payments									$ 500,000
Granted, weighted-average grant-date fair value (in dollars per share)									$ 2.98
2018 \| Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years	3 years
Forfeited, weighted average grant-date fair value (in dollars per share)									$ 2.63
2018 \| Restricted Stock Units - Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
Outstanding shares (in shares)										600,000
Granted (in shares)					600,000
Compensation cost for share-based payments										$ 400,000
Granted, weighted-average grant-date fair value (in dollars per share)					$ 2.25
Vested (in shares)										0
Nonvested, ending balance (in shares)										600,000
2018 \| Performance Restricted Stock Units - Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding shares (in shares)										400,000
Performance period				1 year
Compensation cost for share-based payments										$ 100,000
Granted, weighted-average grant-date fair value (in dollars per share)										$ 2.79
Vested (in shares)										121,951,000,000
Nonvested, ending balance (in shares)										400,000
2017 \| Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years		3 years
Forfeited, weighted average grant-date fair value (in dollars per share)										$ 4.52
2016 \| Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years			3 years
Forfeited, weighted average grant-date fair value (in dollars per share)											$ 4.42
2015 \| Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period									3 years				2 years
Forfeited, weighted average grant-date fair value (in dollars per share)												$ 7.49
2015 \| Restricted Stock Units - Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							3 years
Granted (in shares)							489,596
Granted, weighted-average grant-date fair value (in dollars per share)							$ 9.00
2015 \| Performance Restricted Stock Units - Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)							121,951
Compensation cost for share-based payments										$ 0.0	$ 100,000
Granted, weighted-average grant-date fair value (in dollars per share)							$ 7.49
2012 \| Restricted Stock Units - Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								5 years
Granted (in shares)								200,000
Granted, weighted-average grant-date fair value (in dollars per share)								$ 21.69
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum award (in shares)						55,000,000
Multiplier for grant award						313.00%
2016 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum award (in shares)		20,451,976				48,000,000
Multiplier for grant award		135.00%				240.00%
Additional shares (in shares)		5,000,000
Unused shares (in shares)		15,451,976