Accounts payable and accrued expenses

12 Months Ended

Dec. 31, 2018

Accounts payable and accrued expenses [Abstract]

Accounts payable and accrued expenses

16 Accounts payable and accrued expenses

Accounts payable and accrued expenses at December 31, 2018 and 2017 are shown as follows:

	2018		2017
General expenses	$	149,621	$	143,409
Purchased services		92,176		91,122
Operating expenses		45,187		42,035
Taxes payable		11,018		1,492
Salaries and wages		1,404		1,678
Other		58,117		62,182
	$	357,523	$	341,918