Employee Stock Purchase Plan (ESPP), Purchase Price Percentage of Fair Market Value, Grant Date

No definition available.

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- Definition

Employee Stock Purchase Plan (ESPP), Purchase Price Percentage of Fair Market Value, Exercise Date

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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

+ 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
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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.

+ References

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

+ Details

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- Definition

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

+ References

+ Details

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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).

+ 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 (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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.

+ 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
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-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.

+ Details

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Stock-Based Awards - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Unrecognized compensation expense relating to stock options	$ 100,000		$ 100,000
Share based compensation expense	$ 19,151,000	$ 16,032,000	$ 36,196,000	$ 35,511,000
Percent purchase price, grant date, ESPP			85.00%
Percent purchase price, exercise date, ESPP			85.00%
Employee Stock Option
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Unrecognized compensation expense, expected recognition weighted average period			9 months 18 days
Restricted Stock Units (RSUs)
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Unrecognized compensation expense, expected recognition weighted average period			2 years 10 months 24 days
Restricted stock units granted (in shares)			1,400,000
Share of non-vested restricted stock units were outstanding (in shares)	4,500,000		4,500,000
Unrecognized compensation expense related to non-vested restricted stock units	$ 158,000,000.0		$ 158,000,000.0
Performance Shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Unrecognized compensation expense, expected recognition weighted average period			2 years 6 months
Share based compensation expense	1,800,000		$ 3,600,000
Awarded 2016 and 2017 \| Performance Shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Unrecognized compensation expense related to performance shares	0		0
Awarded 2018 \| Performance Shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Unrecognized compensation expense related to performance shares	$ 21,900,000		$ 21,900,000