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Subsequent Events - Additional Information (Details) $ in Thousands, ft² in Millions | 2 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 22, 2018 USD ($) ft² Property | Dec. 31, 2017 USD ($) ft² Property | Dec. 31, 2016 USD ($) ft² Property | Dec. 31, 2015 USD ($) ft² Property
Subsequent Event [Line Items] |  |  |  |
Number of industrial properties | Property |  | 488 |  |
Gross leasable area (GLA) of industrial properties | ft² |  | 60.2 |  |
Acquisition Activity |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Number of industrial properties | Property |  | 8 | 6 | 8
Purchase price of industrial properties acquired |  | $ 174,209 | $ 111,130 | $ 169,218
Gross leasable area (GLA) of industrial properties | ft² |  | 1.1 | 0.7 | 1.9
Subsequent Events |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Severance Costs | $ 1,000 |  |  |
Gross leasable area (GLA) of industrial properties | ft² | 1.3 |  |  |
Subsequent Events | Mortgage Loans Payable 2018 |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Extinguishment of debt, amount | $ 157,782 |  |  |
Subsequent Events | Private Placement Notes 2028 |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Private Placement Notes, face amount | $ 150,000 |  |  |
Private Placement Notes, interest rate | 3.86% |  |  |
Subsequent Events | Private Placement Notes 2030 |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Private Placement Notes, face amount | $ 150,000 |  |  |
Private Placement Notes, interest rate | 3.96% |  |  |
Subsequent Events | Acquisition Activity |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Number of industrial properties | Property | 1 |  |  |
Number of Land Parcels | Property | 1 |  |  |
Purchase price of industrial properties acquired | $ 15,625 |  |  |

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 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 Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 + Details
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