Debt (Debt Repayment) (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Debt repayment schedules under capital lease obligations, long-term debt and non-recourse debt
2019	$ 335,805
2020	17,871
2021	509,027
2022	259,411
2023	308,185
Thereafter	1,347,124
Long-term debt	2,777,423
Interest imputed on Capital Leases	(979)
Original issuer's discount	(3,042)
Current portion	(335,359)
Non-current portion	2,438,043
Capital Leases
Debt repayment schedules under capital lease obligations, long-term debt and non-recourse debt
2019	1,934
2020	1,934
2021	1,936
2022	1,233
2023	0
Thereafter	0
Long-term debt	7,037
Interest imputed on Capital Leases	(979)
Original issuer's discount	0
Current portion	(1,488)
Non-current portion	4,570
Line of Credit
Debt repayment schedules under capital lease obligations, long-term debt and non-recourse debt
2019	527
2020	272
2021	183
2022	250,178
2023	300,185
Thereafter	601,124
Long-term debt	1,152,469
Interest imputed on Capital Leases	0
Original issuer's discount	0
Current portion	(527)
Non-current portion	1,151,942
Non- Recourse
Debt repayment schedules under capital lease obligations, long-term debt and non-recourse debt
2019	325,344
2020	7,665
2021	8,065
2022	0
2023	0
Thereafter	0
Long-term debt	341,074
Interest imputed on Capital Leases	0
Original issuer's discount	(164)
Current portion	(325,344)
Non-current portion	15,566
Revolver
Debt repayment schedules under capital lease obligations, long-term debt and non-recourse debt
2019	0
2020	0
2021	490,843
2022	0
2023	0
Thereafter	0
Long-term debt	490,843
Interest imputed on Capital Leases	0
Original issuer's discount	0
Current portion	0
Non-current portion	490,843
Term Loan
Debt repayment schedules under capital lease obligations, long-term debt and non-recourse debt
2019	8,000
2020	8,000
2021	8,000
2022	8,000
2023	8,000
Thereafter	746,000
Long-term debt	786,000
Interest imputed on Capital Leases	0
Original issuer's discount	(2,878)
Current portion	(8,000)
Non-current portion	$ 775,122

Debt repayment schedules under capital lease obligations, long-term debt and non-recourse debt.

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Imputed Interest on capital lease.

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Long-Term Debt, Maturities, Repayments Of Principal After Year Six

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Original issuer's discount.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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