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v3.19.3

DEBT (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2019 USD ($) Integer | Jun. 30, 2019 USD ($) | Sep. 30, 2019 USD ($) Integer | Dec. 31, 2018 USD ($)
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Secured Debt |  | $ 135,330,000 |  | $ 135,330,000 | $ 188,461,000
Unsecured Debt |  | 838,581,000 |  | 838,581,000 | 723,400,000
Unsecured bank credit facilities |  | 138,579,000 |  | 138,579,000 | 193,926,000
Total debt |  | 1,112,490,000 |  | 1,112,490,000 | 1,105,787,000
Secured and unsecured debt [Member] |  |  |  |  |
Payments of principal over future years [Abstract] |  |  |  |  |
Remainder of 2019 |  | 2,248,000 |  | 2,248,000 |
2020 |  | 114,096,000 |  | 114,096,000 |
2021 |  | 129,562,000 |  | 129,562,000 |
2022 |  | 107,770,000 |  | 107,770,000 |
2023 |  | 115,119,000 |  | 115,119,000 |
2024 and beyond |  | 506,924,000 |  | 506,924,000 |
Long-term debt, maturities, secured debt and unsecured debt |  | $ 975,719,000 |  | $ 975,719,000 |
$35 million senior unsecured private placement notes (2019) [Member] |  |  |  |  |
Secured and Unsecured Debt [Line Items] |  |  |  |  |
Debt Instrument, Term |  | 12 years |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 3.54% |  | 3.54% |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Unsecured debt, carrying amount |  | $ 35,000,000 |  | $ 35,000,000 |
$75 million senior unsecured private placement notes (2019) [Member] |  |  |  |  |
Secured and Unsecured Debt [Line Items] |  |  |  |  |
Debt Instrument, Term |  | 10 years |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 3.47% |  | 3.47% |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Unsecured debt, carrying amount |  | $ 75,000,000 |  | $ 75,000,000 |
$75 million unsecured term loan (repaid in 2019) [Member] |  |  |  |  |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Unsecured debt, carrying amount |  | $ 75,000,000 |  | $ 75,000,000 |
Payments of principal over future years [Abstract] |  |  |  |  |
Fixed interest rate |  | 2.846% |  | 2.846% |
Unsecured bank credit facilities |  |  |  |  |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Unsecured bank credit facilities - variable rate, carrying amount |  | $ 140,006,000 |  | $ 140,006,000 | 195,730,000
Unamortized debt issuance costs |  | (1,427,000) |  | (1,427,000) | (1,804,000)
Unsecured bank credit facilities |  | 138,579,000 |  | 138,579,000 | 193,926,000
Unsecured Debt [Member] |  |  |  |  |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Unsecured debt, carrying amount | [1] | 840,000,000 |  | 840,000,000 | 725,000,000
Unamortized debt issuance costs |  | (1,419,000) |  | (1,419,000) | (1,600,000)
Unsecured Debt |  | 838,581,000 |  | 838,581,000 | 723,400,000
Secured Debt [Member] |  |  |  |  |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Secured debt, carrying amount | [1] | 135,719,000 |  | 135,719,000 | 189,038,000
Unamortized debt issuance costs |  | (389,000) |  | (389,000) | (577,000)
Secured Debt |  | $ 135,330,000 |  | $ 135,330,000 | 188,461,000
$80 million senior unsecured private placement notes (2019) [Member] |  |  |  |  |
Secured and Unsecured Debt [Line Items] |  |  |  |  |
Debt Instrument, Term |  |  | 10 years |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 4.27% |  |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Unsecured debt, carrying amount |  |  | $ 80,000,000 |  |
Pnc Na Unsecured revolving credit facility [Member] | Former credit facility - $35 million [Member] |  |  |  |  |
Secured and Unsecured Debt [Line Items] |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  | $ 35,000,000
Debt instrument, basis spread above LIBOR variable rate |  |  |  |  | 100
Line of credit, facility fee (in basis points) |  |  |  |  | 20
Debt Instrument, Maturity Date, Description |  |  |  |  | July 30, 2019
Pnc Na Unsecured revolving credit facility [Member] | Credit facility obtained in 2018 - $45 million [Member] |  |  |  |  |
Secured and Unsecured Debt [Line Items] |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End |  | 3.016% |  | 3.016% |
Line of Credit Facility, Current Borrowing Capacity |  | $ 45,000,000 |  | $ 45,000,000 |
Debt instrument, basis spread above LIBOR variable rate |  |  |  | 100 |
Line of credit, facility fee (in basis points) |  |  |  | 20 |
Debt Instrument, Maturity Date, Description |  |  |  | Jul. 30, 2022 |
Extension option on credit facility |  |  |  | two six-month extensions |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Unsecured bank credit facilities - variable rate, carrying amount |  | $ 30,006,000 |  | $ 30,006,000 |
Nine bank group unsecured revolving credit facility [Member] | Former facility - $300 million [Member] |  |  |  |  |
Secured and Unsecured Debt [Line Items] |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  | $ 300,000,000
Debt instrument, basis spread above LIBOR variable rate |  |  |  |  | 100
Line of credit, facility fee (in basis points) |  |  |  |  | 20
Debt Instrument, Maturity Date, Description |  |  |  |  | Jul. 30, 2019
Nine bank group unsecured revolving credit facility [Member] | Bank credit facility obtained in 2018 - $350 million [Member] |  |  |  |  |
Secured and Unsecured Debt [Line Items] |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End |  | 3.048% |  | 3.048% |
Letters of Credit Outstanding, Amount |  | $ 674,000 |  | $ 674,000 |
Line of Credit Facility, Current Borrowing Capacity |  | $ 350,000,000 |  | $ 350,000,000 |
Number of banks included in the unsecured revolving credit facility | Integer |  | 9 |  | 9 |
Debt instrument, basis spread above LIBOR variable rate |  |  |  | 100 |
Line of credit, facility fee (in basis points) |  |  |  | 20 |
Debt Instrument, Maturity Date, Description |  |  |  | Jul. 30, 2022 |
Extension option on credit facility |  |  |  | two six-month extensions |
Expansion option on credit facility |  |  |  | $ 150,000,000 |
Loans Payable, Noncurrent [Abstract] |  |  |  |  |
Unsecured bank credit facilities - variable rate, carrying amount |  | $ 110,000,000 |  | $ 110,000,000 |
Nine bank group unsecured revolving credit facility [Member] | $80 million interest rate swap [Member] |  |  |  |  |
Secured and Unsecured Debt [Line Items] |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End |  |  |  |  | 2.02%
Unsecured bank credit facilities - fixed rate, carrying amount |  |  |  |  | $ 80,000,000
Debt Instrument, Maturity Date, Description |  |  |  |  | Aug. 15, 2018
[1] | These loans have a fixed interest rate or an effectively fixed interest rate due to interest rate swaps.

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