SUPPLEMENTAL CASH FLOW INFORMATION

3 Months Ended

Mar. 31, 2019

NOTE T — SUPPLEMENTAL CASH FLOW INFORMATION

Changes in operating assets and liabilities on cash flows from operating activities is as follows:


	For the Three Months Ended
	March 31,
(in thousands)	2019		2018
Accounts receivable, net	$	10,395	$	19,425
Inventories		(880)		1,085
Other current assets and other assets		(1,433)		650
Income taxes		(355)		12,255
Accounts payable		(6,511)		552
Accrued expenses and other current liabilities		492		(5,067)
Accrued compensation related costs		(32,970)		(35,789)
Other liabilities		(1,829)		(2,537)
Operating lease liabilities		(10,082)		—
Changes in operating assets and liabilities on cash flows from operating activities	$	(43,173)	$	(9,426)

The supplemental disclosure requirements for the statements of cash flows are as follows:


	For the Three Months Ended
	March 31,
(in thousands)	2019		2018
Issuance of seller notes in connection with acquisitions	$	4,451	$	—
Additions to property, plant and equipment acquired through financing obligations		—		1,208
Retirements of financed property, plant and equipment and related obligations		—		2,246
Purchase of property, plant and equipment in accounts payable at period end		4,443		545