Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2019

LONG-TERM DEBT

		2019			2018		2019			2018
Senior Credit Facility	US	$	—	US	$	—	$	—		$	—
Unsecured Senior Notes:
6.5% senior notes due 2021			90,625			165,625		117,678			226,113
7.75% senior notes due 2023			344,845			350,000		447,792			477,823
5.25% senior notes due 2024			307,690			351,104		399,545			479,331
7.125% senior notes due 2026			369,735			400,000		480,112			546,084
	US	$	1,112,895	US	$	1,266,729		1,445,127			1,729,351
Less net unamortized debt issue costs								(17,946	)		(23,098	)
							$	1,427,181		$	1,706,253

	Senior Credit Facility		Unsecured Senior Notes			Debt Issue Costs			Total
Balance December 31, 2017	$	—	$	1,758,519		$	(28,082	)	$	1,730,437
Changes from financing cash flows:
Redemption / repurchase of senior notes		—		(168,722	)		—			(168,722	)
Non-cash changes:
Gain on redemption / repurchase of unsecured senior notes		—		(5,672	)		—			(5,672	)
Amortization of debt issue costs		—		—			4,984			4,984
Foreign exchange adjustment		—		145,226			—			145,226
Balance December 31, 2018		—		1,729,351			(23,098	)		1,706,253
Changes from financing cash flows:
Redemption / repurchase of senior notes		—		(198,387	)		—			(198,387	)
Non-cash changes:
Gain on redemption / repurchase of unsecured senior notes		—		(6,815	)		—			(6,815	)
Amortization of debt issue costs		—		—			5,152			5,152
Foreign exchange adjustment		—		(79,022	)		—			(79,022	)
Balance December 31, 2019	$	—	$	1,445,127		$	(17,946	)	$	1,427,181

Long-term debt obligations at December 31, 2019 will mature as follows:

Following is a listing of the currently applicable restrictive and financial covenants as at December 31, 2019:

	Covenant	At December 31, 2019
Senior Credit Facility
Consolidated senior debt to consolidated covenant EBITDA⁽¹⁾	≤ 2.50		0.00
Consolidated covenant EBITDA to consolidated interest expense	≥ 2.50		3.39

Unsecured Senior Notes
Consolidated interest coverage ratio	≥ 2.00		3.30

⁽¹⁾^{For purposes of calculating the leverage ratio consolidated senior debt only includes secured indebtedness.}