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Real Estate (Tables) | 12 Months Ended
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Dec. 31, 2018
Real Estate Properties [Line Items] |
Schedule of Property Subject to or Available for Operating Lease | Boston Properties, Inc. Real estate consisted of the following at December 31, 2018 and December 31, 2017 (in thousands):
|  | 2018 |  | 2017
Land |  | $ | 5,072,568 |  |  | $ | 5,080,679 |
Land held for future development (1) |  | 200,498 |  |  | 204,925 |
Buildings and improvements |  | 13,356,751 |  |  | 12,284,164 |
Tenant improvements |  | 2,396,932 |  |  | 2,219,608 |
Furniture, fixtures and equipment |  | 44,351 |  |  | 37,928 |
Construction in progress |  | 578,796 |  |  | 1,269,338 |
Total |  | 21,649,896 |  |  | 21,096,642 |
Less: Accumulated depreciation |  | (4,897,777 | ) |  | (4,589,634 | )
|  | $ | 16,752,119 |  |  | $ | 16,507,008 |
_______________
(1) | Includes pre-development costs.
Boston Properties Limited Partnership Real estate consisted of the following at December 31, 2018 and December 31, 2017 (in thousands):
|  | 2018 |  | 2017
Land |  | $ | 4,971,475 |  |  | $ | 4,976,303 |
Land held for future development (1) |  | 200,498 |  |  | 204,925 |
Buildings and improvements |  | 13,059,488 |  |  | 11,977,062 |
Tenant improvements |  | 2,396,932 |  |  | 2,219,608 |
Furniture, fixtures and equipment |  | 44,351 |  |  | 37,928 |
Construction in progress |  | 578,796 |  |  | 1,269,338 |
Total |  | 21,251,540 |  |  | 20,685,164 |
Less: Accumulated depreciation |  | (4,800,475 | ) |  | (4,496,959 | )
|  | $ | 16,451,065 |  |  | $ | 16,188,205 |
_______________
(1) | Includes pre-development costs.
Platform 16 |
Real Estate Properties [Line Items] |
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block] | As of November 29, 2018, future minimum lease payments related to the recognized portion of the capital lease are as follows (in thousands):
Period from November 29, 2018 through December 31, 2018 | $ | 1,385 |
2019 | 427 |
2020 | 11,132 |
Total expected minimum lease payments | 12,944 |
Interest portion | (547 | )
Present value of expected net minimum lease payments | $ | 12,397 |

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- Definition Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 + Details
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- Definition Tabular disclosure of lessor's property under leasing agreements and property available for lease (not currently under lease) by property class, the gross amount, accumulated depreciation and net amount of as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84164653&loc=d3e41551-112718 + Details
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