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Consolidated Statements of Cash Flows (UNITED DOMINION REALTY, L.P) (Unaudited) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Operating Activities |  |  |
Net income/(loss) | $ 357,159 | $ 159,842 | $ 46,282
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |
Depreciation and amortization | 381,277 | 363,929 | 348,231
Gain/(loss) on sales of real estate owned | 251,677 | 143,572 | 0
Income/(loss) from unconsolidated entities | (62,329) | 7,006 | 415
Other | 6,612 | 13,104 | 15,025
Changes in operating assets and liabilities: |  |  |
Increase/(decrease) in operating assets | (3,968) | (1,074) | (15,135)
Increase/(decrease) in operating liabilites | (9,590) | (5,618) | (16,699)
Net cash provided by operating activities | 431,615 | 392,360 | 339,902
Investing Activities |  |  |
Acquisition of real estate assets | 244,769 | 228,810 | 0
Development of real estate assets | (103,205) | (251,493) | (280,603)
Capital expenditures and other major improvements - real estate assets, net of escrow reimbursement | 113,400 | 96,679 | 153,676
Net cash provided by/(used in) investing activities | (238,449) | (293,660) | (123,209)
Financing Activities |  |  |
Proceeds from the issuance of secured debt | 127,600 | 5,502 | 0
Payments on secured debt | (193,958) | (80,961) | (46,564)
Net cash (used in)/provided by financing activities | (201,648) | (113,725) | (198,559)
Net increase/(decrease) in cash and cash equivalents | (8,482) | (15,025) | 18,134
Cash and cash equivalents, beginning of period | 15,224 | 30,249 | 12,115
Cash and cash equivalents, end of period | 6,742 | 15,224 | 30,249
Supplemental Information: |  |  |
Interest paid during the period, net of amounts capitalized | 130,240 | 131,815 | 127,877
Real Estate Investment Property, Net | 6,407,555 | 5,770,855 |
Acquisition of investment in DownREIT Partnership | 660,832 | 0 | 0
Secured debt, net | 1,376,945 | 1,354,321 |
Deconsolidation of communitites contributed to DownREIT Partnership | 0 | 54,938 | 175,951
United Dominion Reality L.P. |  |  |
Operating Activities |  |  |
Net income/(loss) | 215,063 | 97,179 | 77,942
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |
Depreciation and amortization | 169,784 | 179,176 | 181,302
Gain/(loss) on sales of real estate owned | 158,123 | 63,635 | 0
Net gain on the sale of depreciable property | 0 | 0 | 41,518
Income/(loss) from unconsolidated entities | 4,659 | 0 | 0
Other | 606 | 2,497 | 1,827
Changes in operating assets and liabilities: |  |  |
Increase/(decrease) in operating assets | 385 | (1,756) | (11,685)
Increase/(decrease) in operating liabilites | (5,609) | (5,429) | 478
Net cash provided by operating activities | 226,765 | 208,032 | 208,346
Investing Activities |  |  |
Acquisition of real estate assets | 141,424 | 0 | 0
Proceeds from sales of real estate investments, net | 232,728 | 47,922 | 79,437
Development of real estate assets | (6,280) | (47,220) | (66,407)
Capital expenditures and other major improvements - real estate assets, net of escrow reimbursement | 61,441 | 47,352 | 76,984
Net cash provided by/(used in) investing activities | 23,583 | (46,650) | (63,954)
Financing Activities |  |  |
Advances from General Partner, net | (232,764) | (153,751) | (92,537)
Proceeds from the issuance of secured debt | 184,638 | 5,909 | 0
Payments on secured debt | (189,244) | (4,995) | (42,237)
Distributions paid to partnership unitholders | (10,367) | (9,929) | (9,348)
Payment of financing costs | (10) | (11) | (1,177)
Net cash (used in)/provided by financing activities | (247,747) | (162,777) | (145,299)
Net increase/(decrease) in cash and cash equivalents | 2,601 | (1,395) | (907)
Cash and cash equivalents, beginning of period | 502 | 1,897 | 2,804
Cash and cash equivalents, end of period | 3,103 | 502 | 1,897
Supplemental Information: |  |  |
Interest paid during the period, net of amounts capitalized | 44,881 | 44,629 | 42,506
Acquisition of investment in DownREIT Partnership | 174,822 | 0 | 0
Secured debt, net | 475,964 | 927,484 |
Deconsolidation of communitites contributed to DownREIT Partnership |  | 0 | 0
Real estate distributed to the General Partner | 0 | 0 | 74,586
OP Units redeemed by General Partner in partial consideration for real estate distributed |  |  | (77,041)
Reallocation of Credit Facilities Debt from General Partner | 17,557 | 0 | 13,682
Development costs and capital expenditures Incurred but not yet paid | 3,118 | 7,254 | 6,371
Partnership Capital [Member] | United Dominion Reality L.P. |  |  |
Supplemental Information: |  |  |
OP Units redeemed by General Partner in partial consideration for real estate distributed | 0 | 0 | (23,329)
UDR Lighthouse DownREIT L.P. [Member] | United Dominion Reality L.P. |  |  |
Adjustments to reconcile net income/(loss) to net cash provided by operating activities: |  |  |
Gain/(loss) on sales of real estate owned | 133,500 |  |
Financing Activities |  |  |
Cash and cash equivalents, end of period | (140) |  |
Supplemental Information: |  |  |
Real Estate Investment Property, Net | (405,116) | $ 0 | $ 0
Secured debt, net | $ (228,390) |  |

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- Definition Cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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