v3.8.0.1

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) |  | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Significant Accounting Policies [Line Items] |  |  |  |
Capitalized cost |  | $ 0 | $ 0 | $ 0
Real estate taxes |  | 0 | 0 | $ 0
Impairment of real estate assets |  | $ 2,608,000 |  |
Sale of real estate description |  | Real estate sales are recognized when all of the following criteria are met: (1) a sale is consummated, (2) the buyer has demonstrated an adequate commitment to pay for the property, (3) the Company’s receivable is not subject to future subordination, and (4) the Company has transferred the risks and rewards of ownership to the buyer and does not have continuing involvement. |  |
Lessor operating lease description |  | A lease arrangement is classified as an operating lease if none of the following criteria are met: (i) ownership transfers to the lessee prior to or shortly after the end of the lease term, (ii) lessee has a bargain purchase option during or at the end of the lease term, (iii) the lease term is greater than or equal to 75% of the underlying property’s estimated useful life, or (iv) the present value of the future minimum lease payments (excluding executory costs) is greater than or equal to 90% of the fair value of the leased property. If one or more of these criteria are met, and the minimum lease payments are determined to be reasonably predictable and collectible, the lease arrangement is generally accounted for as a direct financing lease. Consistent with FASB Accounting Standards Codification (“ASC”) ASC 840, Leases, if the fair value of the land component is 25% or more of the total fair value of the leased property, the land is considered separately from the building for purposes of applying the lease term and minimum lease payments criterion in (iii) and (iv) above |  |
Lease term as percentage of property's useful life | 75.00% | 75.00% |  |
Present value of future minimum lease payments as percentage of fair value of leased property | 90.00% | 90.00% |  |
Fair value of land component as percentage of leased property | 25.00% | 25.00% |  |
Rents received in advance | $ 8,585,000 | $ 8,585,000 | 7,566,000 |
Allowance for doubtful notes receivable | 0 | 0 |  |
Tenant reserve | 627,000 | 627,000 | 480,000 |
Tenant and capital reserves | 943,000 | 943,000 | $ 767,000 |
Obligation to fund capital improvements | $ 0 | $ 0 |  |
Percentage of economic interests owned by non-controlling interests | 7.60% | 7.60% | 8.60% | 10.40%
Fair value of debt | $ 1,177,197,000 | $ 1,177,197,000 | $ 873,026,000 |
Carrying amount of debt | 1,181,470,000 | $ 1,181,470,000 | 869,524,000 |
Percentage of income tax benefit likely of being realized upon settlement |  | more than 50% |  |
Uncertain tax positions | 0 | $ 0 | 0 | $ 0
Revenue from tax reimbursed from tenants |  | 2,877,000 | 2,004,000 | 1,994,000
Decrease ( increase) in restricted cash |  | 724,000 | (1,381,000) | 4,150,000
Accounting Standards Update201515 | Unsecured Revolver |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Debt issuance costs, net | 3,431,000 | 3,431,000 | 2,386,000 |
Accumulated amortization, debt issuance costs | 405,000 | 405,000 | 1,940,000 |
Accounting Standards Update201515 | Mortgage And Notes Payable |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Debt issuance costs, net | 1,040,000 | 1,040,000 | 1,291,000 |
Accumulated amortization, debt issuance costs | 402,000 | 402,000 | 453,000 |
Accounting Standards Update201515 | Unsecured Term Notes |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Debt issuance costs, net | 4,788,000 | 4,788,000 | 3,641,000 |
Accumulated amortization, debt issuance costs | 1,700,000 | 1,700,000 | 1,532,000 |
ASU 2017-01 |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Acquisition costs capitalized | 12,349,000 | 12,349,000 |  |
Capital Reserve [Member] |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Tenant and capital reserves | $ 316,000 | 316,000 | 287,000 |
Tenants |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Direct payment for property taxes |  | 19,700,000 | 16,200,000 | 12,000,000
Property taxes expense |  | $ 2,899,000 | $ 1,933,000 | $ 1,987,000
Minimum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Capitalization rate |  | 7.25% |  |
Lease term |  | 9 years |  |
Minimum | Federal and State Taxing Authorities |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Tax years under examination | 2014 |  |  |
Maximum |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Capitalization rate |  | 12.00% |  |
Lease term |  | 29 years |  |
Maximum | Federal and State Taxing Authorities |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Tax years under examination | 2017 |  |  |
Weighted Average |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Discount rate |  | 8.00% |  |
Broadstone Net Lease, LLC |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Percentage of economic interests owned | 92.40% | 92.40% | 91.40% | 89.60%
Percentage of economic interests owned by non-controlling interests | 7.60% | 7.60% | 8.60% | 10.40%

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