Share based compensation arrangement by share based payment award performance period.

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- Definition

Share based compensation arrangement by share based payment award purchase price of common stock.

+ References

No definition available.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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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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-Publisher FASB
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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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

The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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-Publisher FASB
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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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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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-Publisher FASB
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- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

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- Definition

Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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-Publisher FASB
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- Definition

Percentage of vesting of share-based compensation awards.

+ References

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

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- Definition

Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Stock-Based Compensation Plans - Additional Information (Details) - USD ($)	1 Months Ended		12 Months Ended
	Oct. 31, 2017	May 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of share units granted			522,000
Weighted-average grant-date fair value			$ 26.63
Share units performance period			3 years
Stock-based compensation expense			$ 9,423,000	$ 2,627,000
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Eligible employees payroll deductions percentage	10.00%
Description of terms of award			Eligible employees
Purchase price of common stock as percentage of market value	85.00%
Stock-based compensation expense			$ 400,000
Shares available for issuance under ESPP			2,900,000
Stock issued during period shares share based compensation			100,000
RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant-date fair value of RSUs granted			$ 26.63	$ 25.84
Aggregate fair value of share appreciation rights vested			$ 3,700,000	$ 1,800,000
PSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of share units granted			780,000
Weighted-average grant-date fair value			$ 27.41
PSUs \| Certain Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of share units granted			632,000
PSUs \| Tranche One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			3 years
Share units performance period			3 years
PSUs \| Tranche Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			3 years
Share units performance period			2 years
Maximum \| Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Purchase price of common stock	$ 10,000
Shares available for issuance under ESPP			3,000,000
Maximum \| RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			4 years
Maximum \| PSUs \| Tranche One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share units vesting percentage			150.00%
Maximum \| PSUs \| Tranche Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share units vesting percentage			200.00%
Minimum \| RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period			1 year
Minimum \| PSUs \| Tranche One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share units vesting percentage			0.00%
Minimum \| PSUs \| Tranche Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share units vesting percentage			0.00%
Omnibus Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares available for future grants			15,700,000
Omnibus Plan \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares issued		18,000,000