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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 6 Months Ended
--- | ---
Jun. 30, 2014 | Jun. 30, 2013
Operating activities: |  |
Net (loss) income | $ (6,733) | $ 51,136
Adjustments to reconcile net income to cash provided by operating activities: |  |
Decrease (increase) in accrued interest receivable | 774 | 1,231
(Decrease) increase in accrued interest payable | (778) | (1,234)
Provision for loan losses | 0 | 261
Loss on derivative instruments, net | (36,496) | 11,336
Loss (gain) on sale of investments, net | (3,784) | 3,422
Fair value adjustments, net | 119 | (740)
Amortization and depreciation | 71,705 | 66,751
Stock-based compensation expense | 1,355 | 1,106
Other operating activities | (598) | 782
Net cash and cash equivalents provided by operating activities | 105,534 | 101,989
Investing activities: |  |
Purchase of investments | 298,699 | 1,310,794
Principal payments received on investments | 253,263 | 481,072
Proceeds from sales of investments | 95,932 | 164,916
Principal payments received on mortgage loans held for investment, net | 2,889 | 8,495
Net payments on derivatives not designated as hedges | 5,951 | 436
Other investing activities | 5 | (142)
Net cash and cash equivalents used in investing activities | 47,429 | (656,605)
Financing activities: |  |
(Repayments of) borrowings under repurchase agreements, net | (133,912) | 507,056
Principal payments on non-recourse collateralized financing | (858) | (5,940)
Increase in restricted cash | 17,362 | 0
Proceeds from issuance of preferred stock | 0 | 54,251
Proceeds from issuance of common stock | 107 | 7,412
Payments Related to tax withholding for share-based compensation | 505 | 545
Dividends paid | 32,926 | 34,084
Net cash and cash equivalents provided by (used in) financing activities | (185,456) | 528,150
Net increase (decrease) in cash and cash equivalents | (32,493) | (26,466)
Cash and cash equivalents at beginning of period | 69,330 | 55,809
Cash and cash equivalents at end of period | 36,837 | 29,343
Supplemental Disclosure of Cash Activities: |  |
Cash paid for interest | $ 10,861 | $ 22,065

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- Definition Amount of unrealized holding gain (loss) recognized in the income statement for investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(c)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e24584-111560 + Details
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