Long-term debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

	2016			2015
Long-term debt:
Revolving credit facilities (a)	$	958,304		$	1,057,093
Term loan credit facilities (b)		1,600,085			1,985,102
Senior unsecured notes (c)		345,000			345,000
Deferred financing fees		(18,875	)		(29,354	)
Long-term debt		2,884,514			3,357,841
Current portion		(314,817	)		(285,783	)
Long-term debt	$	2,569,697		$	3,072,058

Schedule of Minimum Repayments for Balances Outstanding for Revolving and Term Loan Credit Facilities

Based on the Revolvers outstanding at December 31, 2016, the minimum repayments for the balances outstanding are as follows:

2017	$	104,183
2018		65,923
2019		197,320
2020		53,281
2021		56,416
Thereafter		481,181
	$	958,304

Based on the Term Loans outstanding at December 31, 2016, the minimum repayments for the balances outstanding are as follows:

2017	$	211,748
2018		154,307
2019		234,762
2020		186,903
2021		256,446
Thereafter		555,919
	$	1,600,085