Represents the number of outstanding stock options.

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- Definition

Equity based compensation.

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Number of equity based compensation plan.

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- Definition

Share based compensation arrangement by share based payment award options maximum contractual term.

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- Definition

Shares conversion number of shares per unit.

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- Definition

Stock option contractual term.

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No definition available.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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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.

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Description of award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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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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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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Percentage of vesting of share-based compensation awards.

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Equity-Based Compensation - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) plan shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($)
Equity-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value \| $	$ 5,805	$ 5,471	$ 4,959
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	267,792
Equity-Based Compensation
Number of Equity Based Compensation Plan \| plan	5
Other accrued liabilities \| $	$ 6,165	$ 7,367
Options
Equity-Based Compensation
Stock options exercisable cumulative annual installments period	10 years
Stock option contractual term	10 years
Employee Service Share Based Compensation Awards Stock Options Outstanding	0
Service-Based RSUs
Equity-Based Compensation
Number of shares issuable, against each unit of RSU	1
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights	three
Performance-Based RSUs
Equity-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number		271,305
Equity-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights	three
RSU
Equity-Based Compensation
Tax benefit from the issuance of stock \| $	$ 1,312
Cash Settled Awards [Member]
Equity-Based Compensation
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	17,248	14,082
Equity-Based Compensation
Other accrued liabilities \| $	$ 300	$ 241
Minimum \| Options
Equity-Based Compensation
Vesting period	4 years
Minimum \| Performance-Based RSUs
Equity-Based Compensation
Vesting percent	0.00%
Maximum \| Performance-Based RSUs
Equity-Based Compensation
Vesting percent	200.00%