5. Long‑term debt

Long‑term debt consists of the following:


	June 30,		December 31,
	2018		2017		Interest Rate
Recourse Debt:
Senior secured term loan facility, due 2023(1)	$	490.0	$	540.0	LIBOR(2)	plus	3.00	%
Senior unsecured notes, due June 2036 (Cdn$210.0)		159.5		167.4			5.95	%
Non-Recourse Debt:
Epsilon Power Partners term facility, due 2019 (3)		—		7.2	LIBOR	plus	3.125	%
Cadillac term loan, due 2025 (4)		22.5		24.0	LIBOR	plus	1.49	%
Other long-term debt		—		0.1	5.50	% -	6.70	%
Less: unamortized discount		(10.8)		(12.8)
Less: unamortized deferred financing costs		(8.6)		(10.1)
Less: current maturities		(78.0)		(99.5)
Total long-term debt	$	574.6	$	616.3

Current maturities consist of the following:


	June 30,		December 31,
	2018		2017		Interest Rate
Current Maturities:
Senior secured term loan facility, due 2023(1)	$	75.0	$	90.0	LIBOR(2)	plus	3.00	%
Epsilon Power Partners term facility, due 2019 (3)		—		6.5	LIBOR	plus	3.125	%
Cadillac term loan, due 2025 (4)		3.0		3.0	LIBOR	plus	1.49	%
Total current maturities	$	78.0	$	99.5

⁽¹⁾

On a quarterly basis, we make a cash sweep payment to fund the principal balance, based on terms as defined in the term loan credit agreement. The portion of the senior secured term loan facility classified as current is based on principal payments required to reduce the aggregate principal amount of senior secured term loan outstanding to achieve a target principal amount that declines quarterly based on a pre-determined specified schedule.

⁽²⁾

London Interbank Offered Rate (“LIBOR”) cannot be less than 1.00%. We have entered into interest rate swap agreements to mitigate the exposure to changes in LIBOR for $457.7 million of the $490 million outstanding aggregate borrowings under our senior secured term loan facility at June 30, 2018. See Note 8, Accounting for derivative instruments and hedging activities for further details. On April 19, 2018, the repricing of the $510 million senior secured term loan facility became effective. As a result of the repricing, the interest rate margin on the term loan and revolver was reduced by 0.50% to LIBOR plus 3.00%.

⁽³⁾

In June 2018, we pre-paid the remaining $5.6 million principal amount originally due in 2018 and 2019.

⁽⁴⁾

We have entered into interest rate swap agreements to economically fix our exposure to changes in interest rates for this non-recourse debt. See Note 8, Accounting for derivative instruments and hedging activities, for further details.

⁽⁵⁾