Debt - Additional Information (Details) - USD ($)						3 Months Ended	12 Months Ended
	Feb. 25, 2019	Feb. 20, 2019	Oct. 09, 2018	Oct. 08, 2018	Feb. 10, 2017	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2019	Jan. 01, 2019
Debt Instrument [Line Items]
Debt instrument description							The revolving credit facility has one 12-month extension option, subject to certain conditions, including the payment of a 0.15% extension fee.
Debt instrument, extension fee							0.15%
Unamortized deferred financing costs							$ 663,000	$ 677,000
Dividends declared per common share							$ 0.63	$ 0.84	$ 0.63
Unrestricted cash and cash equivalents upon payment of dividend							$ 8,370,000	$ 12,640,000
Interest rate swap agreement effective date					Apr. 10, 2017
Estimated additional reclassification from other comprehensive income (loss) to interest expense							900,000
Other Assets, Net
Debt Instrument [Line Items]
Debt financing costs, net							2,273,000	2,685,000
Interest Rate Swap Agreements | Other Assets, Net
Debt Instrument [Line Items]
Fair value of derivative financial instruments							$ 2,200,000	$ 1,200,000
Subsequent Event
Debt Instrument [Line Items]
Line of credit facility outstanding amount	$ 278,800,000
Line of credit facility pre-approved borrowing capacity	10,300,000
Credit Agreement
Debt Instrument [Line Items]
Debt instrument, weighted average interest							4.90%	3.60%
Costs related to revolving credit facility, net			$ 800,000
Proceeds from credit agreement			$ 20,400,000
Credit Agreement | Scenario, Forecast
Debt Instrument [Line Items]
Write-off of unamortized deferred financing costs						$ 900,000
Line of credit facility, excess borrowings over borrowing base availability to be paid										$ 12,000,000
Credit Agreement | Subsequent Event
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity		$ 300,000,000
Costs related to revolving credit facility, net		200,000
Proceeds from credit agreement, restricted to use		10,300,000
Credit Agreement | Texas | Subsequent Event
Debt Instrument [Line Items]
Line of credit facility, borrowings exceeds borrowing base availability											$ 7,200,000
Credit Agreement | Texas | Real Estate Investment
Debt Instrument [Line Items]
Percentage of outstanding commitments			60.00%
Credit Agreement | Minimum | Subsequent Event
Debt Instrument [Line Items]
Unrestricted cash and cash equivalents upon payment of dividend		$ 2,000,000
Credit Agreement | Maximum | Subsequent Event | Omega Healthcare Investors, Inc
Debt Instrument [Line Items]
Dividends declared per common share		$ 0.21
Credit Agreement | LIBOR | Minimum
Debt Instrument [Line Items]
Debt instrument interest rate			2.00%	1.75%
Credit Agreement | LIBOR | Maximum
Debt Instrument [Line Items]
Debt instrument interest rate			3.50%	3.00%
Credit Agreement | Base Rate | Minimum
Debt Instrument [Line Items]
Debt instrument interest rate			1.00%	0.75%
Credit Agreement | Base Rate | Maximum
Debt Instrument [Line Items]
Debt instrument interest rate			2.50%	2.00%
Term Loan
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity					$ 125,000,000
Deferred financing costs, gross							$ 1,000,000
Debt financing costs, net							700,000
Term Loan | Subsequent Event
Debt Instrument [Line Items]
Line of credit facility outstanding amount	$ 125,000,000
Term Loan | Credit Agreement
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity							$ 125,000,000
Line of credit facility maturity date							2022-02
Term Loan | Credit Agreement | Subsequent Event
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity		$ 125,000,000
Term Loan | Credit Amendment
Debt Instrument [Line Items]
Deferred financing costs, gross							$ 300,000
Debt financing costs, net							200,000
Secured Revolving Credit facility
Debt Instrument [Line Items]
Costs related to revolving credit facility, gross							4,000,000
Costs related to revolving credit facility, net							2,300,000
Amortization expense of deferred financing costs							1,300,000	$ 1,100,000	$ 2,500,000
Line of credit facility outstanding amount							153,800,000	$ 91,200,000
Secured Revolving Credit facility | Subsequent Event
Debt Instrument [Line Items]
Debt instrument, weighted average interest	5.25%
Line of credit facility outstanding amount	$ 153,800,000
Secured Revolving Credit facility | LIBOR
Debt Instrument [Line Items]
Debt instrument interest rate					1.84%
Secured Revolving Credit facility | LIBOR | Subsequent Event
Debt Instrument [Line Items]
Debt instrument interest rate	2.75%
Secured Revolving Credit facility | Credit Agreement
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity							$ 300,000,000
Line of credit facility maturity date							2021-02
Secured Revolving Credit facility | Credit Agreement | Subsequent Event
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity		$ 175,000,000
Secured Revolving Credit facility | Credit Amendment
Debt Instrument [Line Items]
Costs related to revolving credit facility, gross							$ 500,000
Costs related to revolving credit facility, net							$ 400,000
Unamortized deferred financing costs									$ 300,000