Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Long-Term Debt

	December 31, 2018 $		December 31, 2017 $
U.S. Dollar-denominated Revolving Credit Facilities due through 2022	523,125		629,667
U.S. Dollar-denominated Term Loans due through 2030	1,388,107		1,623,440
U.S. Dollar-denominated Term Loan due through 2021	55,018		85,574
U.S. Dollar Bonds due through 2023	1,024,816		550,000
U.S. Dollar Non-Public Bonds due through 2024	141,158		162,659
Norwegian Krone Bonds due through 2019	9,953		121,889
Total principal	3,142,177		3,173,229
Less debt issuance costs and other	(44,435	)	(49,501	)
Total debt	3,097,742		3,123,728
Less current portion	(554,336	)	(589,767	)
Long-term portion	2,543,406		2,533,961