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Segment Information (Schedule Of Reconciliation Of Net Operating Income To Net Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Net income attributable to the Company's common shareholders / unitholders | $ 96,597 | $ 79,460 | $ 278,323 | $ 250,694
Preferred Stock Dividends / Distributions | (2,589) | (2,618) | (5,207) | (5,207)
Noncontrolling interest-common units of the Operating Partnership | (11,357) | (9,394) | (32,771) | (29,530)
Noncontrolling interest—redeemable preferred units | 0 | (3) | 0 | (6)
Noncontrolling interest in property partnerships | (6,814) | (9,264) | (17,278) | (24,472)
Interest expense | (105,003) | (108,534) | (210,312) | (217,291)
Depreciation and amortization expense | (153,175) | (167,844) | (312,623) | (322,067)
Transaction costs | (913) | (208) | (938) | (535)
General and administrative expense | (25,418) | (22,284) | (54,771) | (51,075)
Gains (losses) from investments in securities | (478) | 24 | (737) | (369)
Interest and other income | (1,524) | (1,293) | (3,029) | (2,700)
Income from unconsolidated joint ventures | (2,234) | (3,078) | (4,025) | (17,912)
Development and management services income | (5,533) | (4,862) | (12,222) | (10,190)
Business Intersegment, Eliminations [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Net income attributable to the Company's common shareholders / unitholders | 96,597 | 79,460 | 278,323 | 250,694
Preferred Stock Dividends / Distributions | 2,589 | 2,618 | 5,207 | 5,207
Noncontrolling interest-common units of the Operating Partnership | 11,357 | 9,394 | 32,771 | 29,530
Noncontrolling interest—redeemable preferred units | 0 | 3 | 0 | 6
Noncontrolling interest in property partnerships | 6,814 | 9,264 | 17,278 | 24,472
Interest expense | 105,003 | 108,534 | 210,312 | 217,291
Depreciation and amortization expense | 153,175 | 167,844 | 312,623 | 322,067
Transaction costs | 913 | 208 | 938 | 535
General and administrative expense | 25,418 | 22,284 | 54,771 | 51,075
Gains on sales of real estate | 0 | 0 | 67,623 | 95,084
Gains (losses) from investments in securities | 478 | (24) | 737 | 369
Interest and other income | 1,524 | 1,293 | 3,029 | 2,700
Income from unconsolidated joint ventures | 2,234 | 3,078 | 4,025 | 17,912
Development and management services income | 5,533 | 4,862 | 12,222 | 10,190
Net Operating Income | 392,097 | 390,400 | 824,587 | 774,622
Boston Properties Limited Partnership |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Net income attributable to the Company's common shareholders / unitholders | 109,938 | 90,852 | 317,234 | 284,221
Preferred Stock Dividends / Distributions | (2,589) | (2,618) | (5,207) | (5,207)
Noncontrolling interest—redeemable preferred units | 0 | (3) | 0 | (6)
Noncontrolling interest in property partnerships | (6,814) | (9,264) | (17,278) | (24,472)
Interest expense | (105,003) | (108,534) | (210,312) | (217,291)
Depreciation and amortization expense | (151,191) | (165,846) | (308,652) | (318,070)
Transaction costs | (913) | (208) | (938) | (535)
General and administrative expense | (25,418) | (22,284) | (54,771) | (51,075)
Gains (losses) from investments in securities | (478) | 24 | (737) | (369)
Interest and other income | (1,524) | (1,293) | (3,029) | (2,700)
Income from unconsolidated joint ventures | (2,234) | (3,078) | (4,025) | (17,912)
Development and management services income | (5,533) | (4,862) | (12,222) | (10,190)
Boston Properties Limited Partnership | Business Intersegment, Eliminations [Member] |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Net income attributable to the Company's common shareholders / unitholders | 109,938 | 90,852 | 317,234 | 284,221
Preferred Stock Dividends / Distributions | 2,589 | 2,618 | 5,207 | 5,207
Noncontrolling interest—redeemable preferred units | 0 | 3 | 0 | 6
Noncontrolling interest in property partnerships | 6,814 | 9,264 | 17,278 | 24,472
Interest expense | 105,003 | 108,534 | 210,312 | 217,291
Depreciation and amortization expense | 151,191 | 165,846 | 308,652 | 318,070
Transaction costs | 913 | 208 | 938 | 535
General and administrative expense | 25,418 | 22,284 | 54,771 | 51,075
Gains on sales of real estate | 0 | 0 | 69,792 | 95,084
Gains (losses) from investments in securities | 478 | (24) | 737 | 369
Interest and other income | 1,524 | 1,293 | 3,029 | 2,700
Income from unconsolidated joint ventures | 2,234 | 3,078 | 4,025 | 17,912
Development and management services income | 5,533 | 4,862 | 12,222 | 10,190
Net Operating Income | $ 392,097 | $ 390,400 | $ 824,587 | $ 774,622

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