Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Long-Term Debt

	June 30, 2018		December 31, 2017
	$		$
U.S. Dollar-denominated Revolving Credit Facilities due through 2022	598,750		629,667
Norwegian Kroner Bonds due through 2019	122,739		121,889
U.S. Dollar-denominated Term Loans due through 2021	76,821		85,574
U.S. Dollar-denominated Term Loans due through 2030	1,508,122		1,623,440
U.S. Dollar Non-Public Bonds due through 2024	158,196		162,659
U.S. Dollar Bonds due through 2022	550,000		550,000
Total principal	3,014,628		3,173,229
Less debt issuance costs and other	(48,420	)	(49,501	)
Total debt	2,966,208		3,123,728
Less current portion	(473,691	)	(589,767	)
Long-term portion	2,492,517		2,533,961