Share-based compensation arrangement by share-based payment award, fair value assumptions, share price targets.

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Equity-based Awards - Summary of Fair Value Assumptions (Detail) - PSUs [Member] - $ / shares										12 Months Ended
	Oct. 01, 2019	Jul. 01, 2019	Apr. 01, 2019	Jan. 01, 2019	Nov. 01, 2018	Oct. 01, 2018	Aug. 01, 2018	Jul. 01, 2018	May 14, 2018	Dec. 31, 2019	Dec. 31, 2018
Share Price Target 12.50 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share price targets										$ 12.50
Risk-free interest rate	1.50%	1.73%	2.28%	2.44%	2.89%	2.88%	2.76%	2.61%	2.68%
Dividend yield										0.00%	0.00%
Expected volatility	65.00%	57.00%	50.00%	54.00%	54.00%	53.00%	55.00%	50.00%	50.00%
Calculated fair value per PSU	$ 3.40	$ 2.63	$ 4.22	$ 6.76	$ 7.65	$ 8.54	$ 9.79	$ 9.87	$ 9.71
Share Price Target 15.00 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share price targets										$ 15.00
Risk-free interest rate	1.50%	1.73%	2.28%	2.44%	2.89%	2.88%	2.76%	2.61%	2.68%
Dividend yield										0.00%	0.00%
Expected volatility	65.00%	57.00%	50.00%	54.00%	54.00%	53.00%	55.00%	50.00%	50.00%
Calculated fair value per PSU	$ 2.83	$ 2.05	$ 3.43	$ 5.86	$ 6.72	$ 7.57	$ 8.66	$ 8.72	$ 8.52
Share Price Target 17.50 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share price targets										$ 17.50
Risk-free interest rate	1.50%	1.73%	2.28%	2.44%	2.89%	2.88%	2.76%	2.61%	2.68%
Dividend yield										0.00%	0.00%
Expected volatility	65.00%	57.00%	50.00%	54.00%	54.00%	53.00%	55.00%	50.00%	50.00%
Calculated fair value per PSU	$ 2.38	$ 1.64	$ 2.80	$ 5.11	$ 5.88	$ 6.66	$ 7.65	$ 7.68	$ 7.48