The increase (decrease) during the period in the number of potential shares granted.

No definition available.

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- Definition

Share-based compensation arrangement by share-based payment award, equity instruments other than options, conversion multiplying factor.

+ References

No definition available.

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- Definition

Represents the number of shares of common stock that each unit is equal to.

+ References

No definition available.

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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
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-Publisher FASB
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-SubTopic 10
-Section S99
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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

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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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
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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

Net number of non-option equity instruments granted to participants.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

Net number of share options (or share units) granted during the period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Stock-Based Compensation Expense - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 22, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation		$ 3,428	$ 2,523	$ 6,205	$ 4,289
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation		$ 2,819	$ 1,887	$ 4,972	$ 3,209
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period (in shares)		0	190,000	216,494	1,100,000
Compensation cost not yet recognized		$ 25,900		$ 25,900
Compensation cost not yet recognized, period of recognition				2 years 10 months 24 days
Stock-Settled Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation		800		$ 1,100
Compensation cost not yet recognized		$ 4,200		$ 4,200
Compensation cost not yet recognized, period of recognition				1 year 7 months 6 days
Award vesting period				1 year
Number of shares of common stock for each unit				1
Stock-Settled Performance-Based Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock units granted in period (in shares)				127,060
Stock-Settled Performance-Based Restricted Stock Units \| rTSR \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				75.00%
Stock-Settled Performance-Based Restricted Stock Units \| rTSR \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				125.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				1 year
Decrease in the potential shares of common stock to be granted		25,415
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 1 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				125.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 1 \| FCF \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				0.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 1 \| FCF \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor		100.00%		100.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				2 years
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 2 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				250.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 2 \| FCF \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				0.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 2 \| FCF \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				200.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 3 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				250.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 3 \| FCF \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				0.00%
Stock-Settled Performance-Based Restricted Stock Units \| Performance period 3 \| FCF \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				200.00%
Cash-Settled Performance-Based Share-Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation		$ 200		$ 400
Compensation cost not yet recognized		1,600		$ 1,600
Compensation cost not yet recognized, period of recognition				1 year 9 months 18 days
Cash-Settled Performance-Based Share-Based Awards \| Performance period 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				1 year
Cash-Settled Performance-Based Share-Based Awards \| Performance period 1 \| rTSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				125.00%
Cash-Settled Performance-Based Share-Based Awards \| Performance period 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				2 years
Cash-Settled Performance-Based Share-Based Awards \| Performance period 2 \| rTSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				250.00%
Cash-Settled Performance-Based Share-Based Awards \| Performance period 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
Cash-Settled Performance-Based Share-Based Awards \| Performance period 3 \| rTSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Multiplying factor				250.00%
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period				1 year
Compensation cost not yet recognized		1,400		$ 1,400
Compensation cost not yet recognized, period of recognition				6 months
Restricted Stock Units \| Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation		$ 31
Restricted Stock Units \| Non-employee members
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units granted	33,504