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Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting, Number of Equal Annual Installments

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Share based compensation arrangement by share based payment award equity instruments other than options nonvested spin off in period.

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Share-Based Compensation Arrangement By Share-Based Payment Award, Vesting Condition, NFFO Growth, Minimum, Percentage

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Stockholders' Equity Note, Spinoff Transaction, Restricted Stock Award Conversion Ratio

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

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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.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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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).

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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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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.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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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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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Millions		1 Months Ended				12 Months Ended
	Jun. 01, 2014 company shares	May 31, 2019 $ / shares shares	Feb. 28, 2019 installment $ / shares shares	May 31, 2018 $ / shares shares	Feb. 28, 2018 installment $ / shares shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 shares	Dec. 31, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of separate and independent companies after spin-off \| company	2
Restricted Stock Award and Performance Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized stock-based compensation expense related to unvested awards \| $						$ 4.3
Weighted average remaining vesting period related to expense recognition (in years)						2 years 1 month 6 days
Shares vested (shares)						247,534	191,287
Shares forfeited (shares)						134	334
Unvested stock awards outstanding (shares)						452,233	519,272	422,911
Number of shares granted (shares)						180,629	287,982
Restricted Stock Award \| Ensign Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock award conversion ratio related to the spin-off	1
Stock awards unvested during spin-off (shares)	207,580
Shares vested (shares)						0
Shares forfeited (shares)						0
Unvested stock awards outstanding (shares)						1,760
Restricted Stock Award \| Officers and Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (shares)			91,440		141,060
Grant date fair market value (usd per share) \| $ / shares			$ 22.00		$ 15.13
Number of equal annual vesting installments \| installment			4		4
Restricted Stock Award \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (shares)		17,749		26,462
Grant date fair market value (usd per share) \| $ / shares		$ 24.23		$ 16.44
Performance Stock Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting metric, Normalized Funds from Operations, minimum (percent)			5.00%		6.00%
Performance Stock Award \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)			1 year		1 year
Performance Stock Award \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)			4 years		4 years
Performance Stock Award \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (shares)			71,440		120,460
Grant date fair market value (usd per share) \| $ / shares			$ 22.00		$ 15.13