Accounts Payable and Accrued Expenses

6 Months Ended

Jun. 30, 2018

6.	Accounts Payable and Accrued Expenses:

Accounts payable and accrued expenses consist of the following (in thousands):


	June 30, 2018		December 31, 2017
Accounts payable	$	28,377	$	34,632
Accrued salaries and bonuses		144,911		225,429
Accrued payroll taxes and benefits		71,379		75,672
Accrued professional liabilities		35,253		37,912
Accrued contingent consideration		26,783		6,259
Accrued interest		5,077		4,495
Other accrued expenses		46,475		53,618

	$	358,255	$	438,017

The net decrease in accrued salaries and bonuses of $80.5 million from December 31, 2017 to June 30, 2018 is primarily due to the payment of performance-based incentive compensation, principally to the Company’s physicians, partially offset by performance-based incentive compensation accrued during the six months ended June 30, 2018. A majority of the Company’s payments for performance-based incentive compensation is paid annually during the first quarter.