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Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Percentage

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Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Historical Volatility Rate Period

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Unrecognized Share Based Compensation, Weighted Average Remaining Period

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Amount of discretionary contributions made by an employer to a defined contribution plan.

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

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Amount of noncash expense for 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 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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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Number of options outstanding, including both vested and non-vested options.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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Number of share options (or share units) exercised during the current period.

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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options outstanding (in shares)	0
Total fair value of units vested	$ 7,900	$ 3,600	$ 8,400
Stock-based compensation expense	9,819	7,648	8,359
Total unrecognized stock-based compensation expense	$ 20,100
Weighted average period to recognized stock-based compensation expense	2 years 6 months
Discretionary matching contribution percent	3.00%
Matching contributions	$ 211	171	143
General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 9,800	$ 7,600	$ 7,000
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock convertible upon each performance-based restricted stock unit vesting (in shares)	1
Weighted average remaining vesting period	2 years 6 months
Weighted average fair value per share (in dollars per share)	$ 20.59	$ 16.02	$ 19.38
Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
FFO Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	0.00%
FFO Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	200.00%
TSR Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Historical volatility rate period	3 years
TSR Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	0.00%
TSR Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	200.00%
Care Capital Properties
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options exercised (in shares)	0
Stock options expired (in shares)	1,200,000
Stock options outstanding (in shares)	0	1,200,000
Weighted average exercise price (in dollars per share)		$ 28.04
Care Capital Properties \| General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			$ 1,400