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Debt (Tables) | 6 Months Ended
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Jun. 30, 2018
Debt Instruments [Abstract] |
Convertible Debt [Table Text Block] | A roll-forward of our note balances, including the effect of period amortization, net of issuance costs, is presented below:
| December 31, 2017 | Cash Paid | Amortization | June 30, 2018
Face Amount | $ | 147,575 |  | $ | (27,575 | ) | $ | — |  | $ | 120,000 |
Discount | (2,637 | ) | $ | 458 |  | $ | 408 |  | (1,771 | )
Issuance Costs | (1,752 | ) | $ | 297 |  | $ | 285 |  | (1,170 | )
Carrying Value | $ | 143,186 |  |  |  | $ | 117,059 |
Schedule of Debt | Debt consists of the following (in thousands):
| June 30, 2018 |  | December 31, 2017
Convertible senior notes - unsecured (net of discount of $1,771 and $2,637) | $ | 118,229 |  |  | $ | 144,938 |
Revolving credit facility - unsecured | 327,000 |  |  | 221,000 |
Bank term loan - unsecured | 250,000 |  |  | 250,000 |
Private placement term loans - unsecured | 400,000 |  |  | 400,000 |
HUD mortgage loans (net of discount of $1,361 and $1,402) | 43,279 |  |  | 43,645 |
Fannie Mae term loans - secured, non-recourse | 96,206 |  |  | 96,367 |
Unamortized loan costs | (8,994 | ) |  | (10,453 | )
| $ | 1,225,720 |  |  | $ | 1,145,497 |
Schedule of Maturities of Long-term Debt | Aggregate principal maturities of debt as of June 30, 2018 for each of the next five years and thereafter are as follows (in thousands):
Twelve months ended June 30, |
2018 | $ | 1,166 |
2019 | 1,207 |
2020 | 1,256 |
2021 | 121,303 |
2022 | 703,353 |
Thereafter | 409,561 |
| 1,237,846 |
Less: discount | (3,132 | )
Less: unamortized loan costs | (8,994 | )
| $ | 1,225,720 |
Schedule of Unsecured Term Loans | is summarized below (in thousands):
Amount |  | Inception |  | Maturity |  | Fixed Rate
$ | 125,000 |  |  | January 2015 |  | January 2023 |  | 3.99%
50,000 |  |  | November 2015 |  | November 2023 |  | 3.99%
75,000 |  |  | September 2016 |  | September 2024 |  | 3.93%
50,000 |  |  | November 2015 |  | November 2025 |  | 4.33%
100,000 |  |  | January 2015 |  | January 2027 |  | 4.51%
$ | 400,000 |  |  |  |  |  |  |
Schedule of Interest Expense | The following table summarizes interest expense (in thousands):
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Interest expense on debt at contractual rates | $ | 11,414 |  |  | $ | 10,312 |  |  | $ | 21,941 |  |  | $ | 20,345 |
Losses reclassified from accumulated other |  |  |  |  |  |  |
comprehensive income into interest expense | 76 |  |  | 645 |  |  | 352 |  |  | 1,434 |
Capitalized interest | (47 | ) |  | (93 | ) |  | (71 | ) |  | (160 | )
Amortization of debt issuance costs and debt discount | 777 |  |  | 868 |  |  | 1,612 |  |  | 1,774 |
Total interest expense | $ | 12,220 |  |  | $ | 11,732 |  |  | $ | 23,834 |  |  | $ | 23,393 |
Schedule of Interest Rate Derivatives |
Date Entered |  | Maturity Date |  | Fixed Rate |  | Rate Index |  | Notional Amount |  | Fair Value
May 2012 |  | April 2019 |  | 2.84% |  | 1-month LIBOR |  | $ | 40,000 |  |  | $ | 265 |
June 2013 |  | June 2020 |  | 3.41% |  | 1-month LIBOR |  | $ | 80,000 |  |  | $ | 761 |
March 2014 |  | June 2020 |  | 3.46% |  | 1-month LIBOR |  | $ | 130,000 |  |  | $ | 1,111 |

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- Definition Schedule of Unsecured Term Loans [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components. + References No definition available. + Details
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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21538-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21521-112644 + Details
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- Definition Tabular disclosure of interest rate derivatives, including, but not limited to, the fair value of the derivatives, statement of financial position location, and statement of financial performance location of these instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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