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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019
Cash Flows from Operating Activities: |  |
Net (loss) income | $ (2,458) | $ 12,174
Adjustments to reconcile net (loss) income to net cash provided by operating activities: |  |
Depreciation and amortization | 117,833 | 125,714
Straight-lining of rental revenue | (19,731) | (22,110)
Amortization of stock-based compensation expense | 9,638 | 12,685
Loss from unconsolidated joint ventures | 10,176 | 1,483
Distributions of earnings from unconsolidated joint ventures | 1,459 | 1,980
Amortization of deferred financing costs | 4,637 | 5,626
Realized and unrealized losses (gains) on marketable securities | 560 | (2,474)
Amortization of above and below-market leases, net | (2,744) | (6,003)
Income from unconsolidated real estate funds | (141) | (65)
Distributions of earnings from unconsolidated real estate funds | 353 | 1,137
Receipt of accrued interest on preferred equity investment |  | 2,339
Other non-cash adjustments | 152 | (339)
Changes in operating assets and liabilities: |  |
Accounts and other receivables | 493 | 381
Deferred charges | (8,107) | (8,466)
Other assets | (4,367) | (6,294)
Accounts payable and accrued expenses | (4,148) | (12,293)
Other liabilities | (494) | 1,338
Net cash provided by operating activities | 103,111 | 106,813
Cash Flows from Investing Activities: |  |
Additions to real estate | (46,575) | (50,766)
Repayment of amounts due from affiliates | 36,918 | 11,000
Sales of marketable securities | 19,049 | 10,407
Purchases of marketable securities | (9,248) | (8,867)
Contributions of capital to unconsolidated real estate funds | (2,936) | (243)
Distributions of capital from unconsolidated real estate funds |  | 1,260
Due from affiliates |  | (181,000)
Investments in and contributions of capital to unconsolidated joint ventures |  | (52,525)
Redemption of preferred equity investment |  | 33,750
Real estate acquisition deposits |  | (20,000)
Net cash used in investing activities | (2,792) | (256,984)
Cash Flows from Financing Activities: |  |
Borrowings under revolving credit facility | 163,082 | 170,000
Proceeds from the sale of a 10.0% interest in 1633 Broadway | 111,984 |
Repurchases of common shares | (100,000) | (6,488)
Dividends paid to common stockholders | (44,989) | (46,804)
Distributions paid to common unitholders | (4,608) | (5,047)
Contributions from noncontrolling interests | 11,555 | 14,966
Distributions to noncontrolling interests | (6,357) | (34,919)
Repayment of note payable issued in connection with the acquisition of noncontrolling interest in unconsolidated real estate fund | (8,771) |
Proceeds from notes and mortgages payable | 3,073 |
Net cash provided by financing activities | 124,653 | 91,141
Repurchase of shares related to stock compensation agreements and related tax withholdings | (316) | (307)
Debt issuance costs |  | (260)
Net increase (decrease) in cash and cash equivalents and restricted cash | 224,972 | (59,030)
Cash and cash equivalents and restricted cash at beginning of period | 331,487 | 365,409
Cash and cash equivalents and restricted cash at end of period | 556,459 | 306,379
Reconciliation of Cash and Cash Equivalents and Restricted Cash: |  |
Cash and cash equivalents at beginning of period | 306,215 | 339,653
Restricted cash at beginning of period | 25,272 | 25,756
Cash and cash equivalents and restricted cash at beginning of period | 331,487 | 365,409
Cash and cash equivalents at end of period | 522,502 | 283,485
Restricted cash at end of period | 33,957 | 22,894
Cash and cash equivalents and restricted cash at end of period | 556,459 | 306,379
Supplemental Disclosure of Cash Flow Information: |  |
Cash payments for interest | 68,920 | 69,401
Cash payments for income taxes, net of refunds | 1,130 | 2,053
Non-Cash Transactions: |  |
Common shares issued upon redemption of common units | 85,311 | 23,990
Dividends and distributions declared but not yet paid | 24,292 | 25,953
Additions to real estate included in accounts payable and accrued expenses | 16,232 | 18,370
Write-off of fully amortized and/or depreciated assets | $ 8,612 | 3,387
Change in value of interest rate swaps |  | $ 24,371

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