v3.8.0.1

Corporate debt, Repayment schedule (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Repayment schedule [Abstract] |  |
Corporate debt | $ 657,321 | $ 643,083
Remainder of 2018 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 73,762 |
Between January and March 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Between April and December 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 253,605 |
2020 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2021 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2022 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 110,385 |
Subsequent Years [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 219,569 |
Credit Facility Tranche A [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 53,846 |
Credit Facility Tranche A [Member] | Remainder of 2018 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 53,846 |
Credit Facility Tranche A [Member] | Between January and March 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Credit Facility Tranche A [Member] | Between April and December 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Credit Facility Tranche A [Member] | 2020 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Credit Facility Tranche A [Member] | 2021 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Credit Facility Tranche A [Member] | 2022 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Credit Facility Tranche A [Member] | Subsequent Years [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Note Issuance Facility [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 330,057 |
Note Issuance Facility [Member] | Remainder of 2018 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 103 |
Note Issuance Facility [Member] | Between January and March 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Note Issuance Facility [Member] | Between April and December 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Note Issuance Facility [Member] | 2020 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Note Issuance Facility [Member] | 2021 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
Note Issuance Facility [Member] | 2022 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 110,385 |
Note Issuance Facility [Member] | Subsequent Years [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 219,569 |
2017 Credit Facility [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 12,277 |
2017 Credit Facility [Member] | Remainder of 2018 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 12,277 |
2017 Credit Facility [Member] | Between January and March 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2017 Credit Facility [Member] | Between April and December 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2017 Credit Facility [Member] | 2020 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2017 Credit Facility [Member] | 2021 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2017 Credit Facility [Member] | 2022 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2017 Credit Facility [Member] | Subsequent Years [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2019 Notes [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 261,141 |
2019 Notes [Member] | Remainder of 2018 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 7,536 |
2019 Notes [Member] | Between January and March 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2019 Notes [Member] | Between April and December 2019 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 253,605 |
2019 Notes [Member] | 2020 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2019 Notes [Member] | 2021 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2019 Notes [Member] | 2022 [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | 0 |
2019 Notes [Member] | Subsequent Years [Member] |  |
Repayment schedule [Abstract] |  |
Corporate debt | $ 0 |

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