Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2018

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow Supplemental Information

Certain supplemental cash flow information, including noncash investing and financing activities for the years ended December 31, 2018, 2017, and 2016 are as follows:

	Year ended December 31,
(in thousands)	2018			2017		2016
Supplemental disclosure of cash flow information
Interest paid	$	29,607		$	23,958	$	21,407
Income taxes paid (refunded), net	(5,439		)	2,065		(10,587		)
Noncash investing and financing activity
Debt resulting from accounting standard adoption	36,953			—		—
Railcar assets resulting from accounting standard adoption	25,643			—		—
Capital projects incurred but not yet paid	14,165			6,840		3,092
Dividends declared not yet paid	5,515			4,650		4,493
Debt financing fees incurred but not yet paid	2,288			—		—
Investment merger (decreasing equity method investments and non-controlling interest)	—			8,360		—