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Debt Instrument, Covenant Compliance, Maximum Distribution Amount, Percent

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Represents the percentage of net proceeds raised in all future equity issuances used for computing the tangible net worth to be maintained as per the covenants of the debt instrument.

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Represents the minimum required ratio of net operating income to debt service as per the covenants of the debt instrument.

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Represents the minimum required ratio of adjusted EBITDA to fixed charges as per the covenants of the debt instrument.

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Represents the maximum ratio of aggregate debt to aggregate assets as per the covenants of the debt instrument.

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Represents the maximum ratio of recourse debt to aggregate assets as per the covenants of the debt instrument.

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Represents the maximum ratio of secured debt to aggregate assets as per the covenants of the debt instrument.

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Represents the minimum required ratio of unencumbered NOI to unsecured interest expense as per the covenants of the debt instrument.

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Represents the maximum ratio of unsecured debt to unencumbered assets as per the covenants of the debt instrument.

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Represents the specified amount for computing the tangible net worth to be maintained as per the covenants of the debt instrument.

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Debt Instrument Percentage Of Principal Amount To Be Prepaid

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Debt Instrument, Prepayment Premium, Percent

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Debt instrument term extension period.

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Minimum Principal That May Be Prepaid On Notes Outstanding

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The lowest amount of unencumbered liquid assets required for compliance purposes.

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The lowest amount of unencumbered liquid assets if including line of credit availability required for compliance purposes.

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Number of additional extension periods.

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Number of properties securing loan.

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Unencumbered liquid assets cash and cash equivalents.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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No definition available.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The lowest amount of net worth (total assets minus total liabilities) required by secondary market investors or state-imposed regulatory mandates.

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The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Notes Payable - Additional Information (Detail)					9 Months Ended	12 Months Ended
Notes Payable - Additional Information (Detail)	Jan. 14, 2016	Dec. 11, 2015	Jul. 16, 2015 USD ($)	Jun. 11, 2014 USD ($) extension	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) property extension	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Assumption of loan in connection with acquisition of real estate including loan premium						$ 0	$ 17,097,000	$ 10,565,000
Number of extensions \| extension						1
Amended facility maximum future borrowing capacity				$ 600,000,000.0
Notes payable						$ 500,184,000	418,154,000
Principal amount						$ 502,476,000	418,698,000
Term Loan One
Debt Instrument [Line Items]
Description of variable rate basis						LIBOR
Debt service coverage ratio						110.00%
Unencumbered liquid assets						$ 5,000,000
Minimum fair market net worth							75,000,000
Notes payable						60,000,000
Long-term line of credit availability						8,000,000
Unencumbered liquid assets cash and cash equivalents						$ 2,000,000
Term Loan two
Debt Instrument [Line Items]
Description of variable rate basis						LIBOR
225 Million Term Loan Facility
Debt Instrument [Line Items]
Amended facility maximum future borrowing capacity					$ 100,000,000
Minimum
Debt Instrument [Line Items]
Additional interest						0.20%
Maximum
Debt Instrument [Line Items]
Additional interest						0.30%
Amended Facility
Debt Instrument [Line Items]
Maximum ratio of total indebtedness to total asset value						60.00%
Maximum ratio of secured debt to total asset value						45.00%
Maximum ratio of recourse debt to total asset						15.00%
Minimum tangible net worth required						$ 283,622,250
Maximum debt to tangible net worth ratio required for equity proceeds						75.00%
Minimum ratio of EBITDA to fixed charges						1.5
Maximum ratio of unsecured debt to the value of the unencumbered asset pool						60.00%
Minimum ratio of NOI unsecured interest expense						1.75
Maximum distribution amount per Credit Facility, percent						95.00%
Note Purchase Agreement
Debt Instrument [Line Items]
Minimum amount of principal that may be prepaid on notes outstanding			$ 2,500,000.0
Principal amount to be prepaid as a percent			100.00%
Fixed Rate Debt \| 60 Million Term Loan Facility [Member]
Debt Instrument [Line Items]
Amortization period						30 years
Debt service coverage ratio						110.00%
LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate						1.00%
LIBOR \| Term Loan One
Debt Instrument [Line Items]
Maturity date						Aug. 01, 2019
Basis spread on variable rate						1.90%
Number of properties securing loan \| property						6
Number of extensions \| extension						1
Extension period						1 year
Principal amount						$ 59,674,000	60,000,000
LIBOR \| Term Loan two
Debt Instrument [Line Items]
Basis spread on variable rate						1.75%
Number of properties securing loan \| property						8
LIBOR \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Maturity date						Jan. 14, 2023
Principal amount						$ 225,000,000	0
Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate						0.50%
Term Loan
Debt Instrument [Line Items]
Maturity date						Jun. 11, 2019
Term Loan \| Term Loan Facility
Debt Instrument [Line Items]
Amortization period				5 years
Number of extensions \| extension				1
Extension period				1 year
Current borrowing capacity				$ 100,000,000.0
Term Loan \| Line of Credit \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Principal amount					$ 225,000,000
Term Loan \| LIBOR \| Term Loan Facility \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate						1.25%
Term Loan \| LIBOR \| Term Loan Facility \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate						1.85%
Term Loan \| LIBOR \| Line of Credit \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Term Loan \| LIBOR \| Line of Credit \| Minimum \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Basis spread on variable rate					1.50%	1.50%
Term Loan \| LIBOR \| Line of Credit \| Maximum \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Basis spread on variable rate					2.25%	2.25%
Term Loan \| Base Rate \| Line of Credit \| Minimum \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Term Loan \| Base Rate \| Line of Credit \| Maximum \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
Term Loan \| Federal Funds Rate \| Line of Credit \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Revolving Credit Facility
Debt Instrument [Line Items]
Maturity date						Jun. 11, 2018
Revolving Credit Facility \| Unsecured Credit Facility
Debt Instrument [Line Items]
Number of extensions \| extension						1
Extension period						1 year
Additional availability						$ 200,000,000
Revolving Credit Facility \| LIBOR
Debt Instrument [Line Items]
Maturity date						Jun. 11, 2018
Principal amount						$ 0	140,500,000
Revolving Credit Facility \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate						1.30%
Revolving Credit Facility \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate						1.90%
Revolving Credit Facility \| LIBOR \| Unsecured Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate						1.55%
RIF V - Glendale Commerce Center, LLC
Debt Instrument [Line Items]
Description of variable rate basis						LIBOR
Debt service coverage ratio						110.00%
RIF V - Glendale Commerce Center, LLC \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate						2.00%
9401 De Soto Ave \| Fixed Rate Debt
Debt Instrument [Line Items]
Fixed interest rate						5.95%
Amortization period						30 years
Maturity date						Apr. 01, 2018
Number of extensions \| extension						1
Extension period						5 years
Principal amount						$ 5,182,000	5,299,000
1065 E. Walnut Street \| Fixed Rate Debt
Debt Instrument [Line Items]
Fixed interest rate						4.55%
Maturity date						Feb. 01, 2019
Extension period						5 years
Principal amount						$ 9,711,000	$ 9,855,000
1065 E. Walnut Street \| Mortgages
Debt Instrument [Line Items]
Amortization period		25 years
Prepayment prior to January 14, 2017 \| Term Loan \| Line of Credit \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Prepayment premium, percent	2.00%
Prepayment January 14, 2017 to January 14, 2018 \| Term Loan \| Line of Credit \| 225 Million Term Loan Facility
Debt Instrument [Line Items]
Prepayment premium, percent	1.00%