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Supplemental Cash Flow Information
12 Months Ended
Dec. 31, 2017
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information
Supplemental Cash Flow Information

Supplemental cash flows and non-cash transactions were as follows for the periods indicated (in thousands):
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
 
 
 
 
 
Cash paid for interest
$
296

 
$
447

 
$
180

Cash paid (received) for income taxes, net of refunds
(20,732
)
 
8,754

 
20,499

 
 
 
 
 
 
Non-cash transactions:
 
 
 
 
 
Change in accounts payable related to capital expenditures
$
5,761

 
$
1,658

 
$
(3,534
)
Insurance premium financed by note payable
5,125

 

 
7,630

Net transfers from inventory to property, plant and equipment
4,689

 

 

Value of shares issued for Blackhawk Group acquisition

 
144,047

 

Conversion of Preferred Stock

 
55,941

 

TRA liability

 
124,531

 

Deferred tax impact of TRA

 
68,590