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Mortgage Notes Payable and Credit Facility - Mortgages Notes Payable (Detail) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2017 USD ($) property | Sep. 30, 2016 USD ($) property
Debt Instrument [Line Items] |  |
Aggregate debt repaid | $ 57,182 | $ 67,119
Weighted average interest rate on debt repaid (as percent) | 4.52% |
Number of properties acquired | property | 5 | 2
Fixed rate mortgage loans |  |
Debt Instrument [Line Items] |  |
Aggregate debt repaid | $ 41,077 |
Weighted average interest rate on debt repaid (as percent) | 6.25% |
Fixed rate mortgage loans | Minimum |  |
Debt Instrument [Line Items] |  |
Stated interest rate (as percent) | 3.545% |
Fixed rate mortgage loans | Maximum |  |
Debt Instrument [Line Items] |  |
Stated interest rate (as percent) | 6.63% |
Variable rate mortgage loans |  |
Debt Instrument [Line Items] |  |
Aggregate debt repaid | $ 8,163 |
Variable rate mortgage loans | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread (as percent) | 2.15% |
Variable rate mortgage loans | LIBOR | Maximum |  |
Debt Instrument [Line Items] |  |
Basis spread (as percent) | 2.75% |
Variable rate mortgage loans | LIBOR | Weighted average |  |
Debt Instrument [Line Items] |  |
Basis spread (as percent) | 2.50% |
New fixed rate mortgage loans |  |
Debt Instrument [Line Items] |  |
Aggregate Fixed Rate Debt Issued or Assumed | $ 54,887 |
Weighted average interest rate on debt repaid (as percent) | 3.78% |
Number of properties acquired with an interest rate swap | property | 1 |
Stated interest rate (as percent) | 3.55% |
New fixed rate mortgage loans | Minimum |  |
Debt Instrument [Line Items] |  |
Stated interest rate (as percent) | 3.75% |
New fixed rate mortgage loans | Maximum |  |
Debt Instrument [Line Items] |  |
Stated interest rate (as percent) | 3.89% |
New variable rate mortgage loans |  |
Debt Instrument [Line Items] |  |
Aggregate Variable Rate Debt Issued or Assumed | $ 7,500 |
New variable rate mortgage loans | LIBOR | Weighted average |  |
Debt Instrument [Line Items] |  |
Basis spread (as percent) | 2.75% |
Existing mortgage notes payable | LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread (as percent) | 2.50% |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
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