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SUPPLEMENTAL CASH FLOW INFORMATION
 12 Months Ended
Dec. 31, 2017
SUPPLEMENTAL CASH FLOW INFORMATION  
SUPPLEMENTAL CASH FLOW INFORMATION

 

NOTE T — SUPPLEMENTAL CASH FLOW INFORMATION

 

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

 

 

 

Year Ended December 31,

 

(in thousands)

 

2017

 

2016

 

2015

 

Cash paid during the period for:

 

 

 

 

 

 

 

Interest paid

 

$
48,437

 

$
42,345

 

$
26,070

 

Income taxes paid (refunds received)

 
725

 
(35,092

)
18,106

 

 

 

 

 

 

 

 

 

Non-cash financing and investing activities:

 

 

 

 

 

 

 

Issuance of seller notes in connection with acquisitions

 

—

 

—

 
4,662

 

Additions to property, plant and equipment acquired through financing obligations

 
1,484

 
374

 
3,743

 

Retirements of financed property, plant and equipment and related financing obligations

 
811

 
2,381

 
1,434

 

Purchase of property, plant and equipment in accounts payable

 
2,119

 
728

 
2,746