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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
Cash flows from operating activities |  |
Revenues from real estate operations received | $ 255,302 | $ 261,980
Construction contract and other service revenues received | 39,917 | 34,992
Property operating expenses paid | (80,385) | (87,005)
Construction contract and other service expenses paid | (31,996) | (24,303)
General, administrative, leasing, business development and land carry costs paid | (20,315) | (19,212)
Interest expense paid | (36,351) | (41,179)
Lease incentives | (9,375) | (996)
Other | 940 | 123
Net cash provided by operating activities | 117,737 | 124,400
Cash flows from investing activities |  |
Construction, development and redevelopment | (85,926) | (75,339)
Tenant improvements on operating properties | (13,711) | (14,862)
Other capital improvements on operating properties | (11,780) | (16,007)
Proceeds from dispositions of properties | 54,798 | 5,448
Leasing costs paid | (3,904) | (3,434)
Other | 1,573 | (13)
Net cash used in investing activities | (58,950) | (104,207)
Proceeds from debt |  |
Revolving Credit Facility | 213,000 | 133,500
Other debt proceeds | 0 | 45,000
Repayments of debt |  |
Revolving Credit Facility | (19,000) | (119,000)
Scheduled principal amortization | (1,913) | (3,532)
Other debt repayments | (200,100) | (40,498)
Net proceeds from issuance of common shares/units | 19,835 | (5)
Redemption of preferred shares/units | (199,083) | 0
Common share/unit dividends/distributions paid | (54,439) | (52,021)
Preferred share/unit dividends/distributions paid | (9,305) | (7,105)
Distributions paid to noncontrolling interests in COPLP | (2,274) | (2,362)
Distributions paid to redeemable noncontrolling interests | (781) | (14,306)
Redemption of vested equity awards | (1,813) | (1,492)
Other | (2,171) | (5,365)
Net cash used in financing activities | (258,044) | (67,186)
Net decrease in cash and cash equivalents | (199,257) | (46,993)
Cash and cash equivalents |  |
Beginning of period | 209,863 | 60,310
End of period | 10,606 | 13,317
Reconciliation of net income (loss) to net cash provided by operating activities: |  |
Net income (loss) | 42,295 | (40,220)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Depreciation and amortization | 66,948 | 68,901
Impairment losses | 1,618 | 72,138
(Gain) loss on interest rate derivatives | (9) | 1,870
Amortization of deferred financing costs and net debt discounts | 2,613 | 2,998
Decrease (increase) in deferred rent receivable | 669 | (1,276)
Gain on sales of real estate | (4,250) | 0
Share-based compensation | 2,820 | 3,839
Other | (2,548) | (1,725)
Operating changes in assets and liabilities: |  |
Increase in accounts receivable | (8,304) | (3,320)
Decrease (increase) in restricted cash and marketable securities | 1,826 | (389)
Decrease in prepaid expenses and other assets, net | 20,800 | 11,303
(Decrease) increase in accounts payable, accrued expenses and other liabilities | (2,387) | 15,394
Decrease in rents received in advance and security deposits | (4,354) | (5,113)
Net cash provided by operating activities | 117,737 | 124,400
Supplemental schedule of non-cash investing and financing activities: |  |
(Decrease) increase in accrued capital improvements, leasing and other investing activity costs | (4,927) | 1,604
Increase in property in connection with capital lease obligation | 16,127 | 0
Increase in property and redeemable noncontrolling interests in connection with property contributed in a joint venture | 0 | 22,600
Decrease in redeemable noncontrolling interests and increase in other liabilities in connection with distribution payable to redeemable noncontrolling interest | 0 | 6,675
Increase (decrease) in fair value of derivatives applied to accumulated other comprehensive loss and noncontrolling interests | 513 | (15,268)
Equity in other comprehensive income (loss) of an equity method investee | 39 | (184)
Dividends/distributions payable | 28,462 | 30,219
Decrease in noncontrolling interests and increase in shareholders’ equity in connection with the conversion of common units into common shares | 2,564 | 371
Adjustments to noncontrolling interests resulting from changes in COPLP ownership | 514 | 5
Increase in redeemable noncontrolling interest and decrease in equity to carry redeemable noncontrolling interest at fair value | 401 | 349
Corporate Office Properties, L.P. |  |
Cash flows from operating activities |  |
Revenues from real estate operations received | 255,302 | 261,980
Construction contract and other service revenues received | 39,917 | 34,992
Property operating expenses paid | (80,385) | (87,005)
Construction contract and other service expenses paid | (31,996) | (24,303)
General, administrative, leasing, business development and land carry costs paid | (20,315) | (19,212)
Interest expense paid | (36,351) | (41,179)
Lease incentives | (9,375) | (996)
Other | 940 | 123
Net cash provided by operating activities | 117,737 | 124,400
Cash flows from investing activities |  |
Construction, development and redevelopment | (85,926) | (75,339)
Tenant improvements on operating properties | (13,711) | (14,862)
Other capital improvements on operating properties | (11,780) | (16,007)
Proceeds from dispositions of properties | 54,798 | 5,448
Leasing costs paid | (3,904) | (3,434)
Other | 1,573 | (13)
Net cash used in investing activities | (58,950) | (104,207)
Proceeds from debt |  |
Revolving Credit Facility | 213,000 | 133,500
Other debt proceeds | 0 | 45,000
Repayments of debt |  |
Revolving Credit Facility | (19,000) | (119,000)
Scheduled principal amortization | (1,913) | (3,532)
Other debt repayments | (200,100) | (40,498)
Net proceeds from issuance of common shares/units | 19,835 | (5)
Redemption of preferred shares/units | (199,083) | 0
Common share/unit dividends/distributions paid | (56,383) | (54,053)
Preferred share/unit dividends/distributions paid | (9,635) | (7,435)
Distributions paid to redeemable noncontrolling interests | (781) | (14,306)
Redemption of vested equity awards | (1,813) | (1,492)
Other | (2,171) | (5,365)
Net cash used in financing activities | (258,044) | (67,186)
Net decrease in cash and cash equivalents | (199,257) | (46,993)
Cash and cash equivalents |  |
Beginning of period | 209,863 | 60,310
End of period | 10,606 | 13,317
Reconciliation of net income (loss) to net cash provided by operating activities: |  |
Net income (loss) | 42,295 | (40,220)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Depreciation and amortization | 66,948 | 68,901
Impairment losses | 1,618 | 72,138
(Gain) loss on interest rate derivatives | (9) | 1,870
Amortization of deferred financing costs and net debt discounts | 2,613 | 2,998
Decrease (increase) in deferred rent receivable | 669 | (1,276)
Gain on sales of real estate | (4,250) | 0
Share-based compensation | 2,820 | 3,839
Other | (2,548) | (1,725)
Operating changes in assets and liabilities: |  |
Increase in accounts receivable | (8,304) | (3,320)
Decrease (increase) in restricted cash and marketable securities | 534 | (1,106)
Decrease in prepaid expenses and other assets, net | 20,800 | 11,303
(Decrease) increase in accounts payable, accrued expenses and other liabilities | (1,095) | 16,111
Decrease in rents received in advance and security deposits | (4,354) | (5,113)
Net cash provided by operating activities | 117,737 | 124,400
Supplemental schedule of non-cash investing and financing activities: |  |
(Decrease) increase in accrued capital improvements, leasing and other investing activity costs | (4,927) | 1,604
Increase in property in connection with capital lease obligation | 16,127 | 0
Increase in property and redeemable noncontrolling interests in connection with property contributed in a joint venture | 0 | 22,600
Decrease in redeemable noncontrolling interests and increase in other liabilities in connection with distribution payable to redeemable noncontrolling interest | 0 | 6,675
Increase (decrease) in fair value of derivatives applied to accumulated other comprehensive loss and noncontrolling interests | 513 | (15,268)
Equity in other comprehensive income (loss) of an equity method investee | 39 | (184)
Dividends/distributions payable | 28,462 | 30,219
Increase in redeemable noncontrolling interest and decrease in equity to carry redeemable noncontrolling interest at fair value | $ 401 | $ 349

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- Definition The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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- Definition Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 16(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 + Details
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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3574-108585 + Details
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- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 + Details
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- Definition Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition Amount of cash outflow for costs that are essential to originate the lease and would not otherwise have been incurred without the lease agreement. Amount includes, but is not limited to, cash outflows to evaluate the lessee's credit condition, guarantees, and collateral and cash outflows for costs incurred in negotiating, processing, and executing the lease agreement. + References No definition available. + Details
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- Definition Amount of cash (inflow) outflow from investing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3098-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3095-108585 + Details
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- Definition The cash outflow to reacquire common stock 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 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Payments to develop real estate assets is the process of adding improvements on or to a parcel of land. Such improvements may include drainage, utilities, subdividing, access, buildings, and any combination of these elements; and are generally classified as cash flow from investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3098-108585 + Details
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