Inventories and natural gas in storage (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories on the Company's Consolidated Balance Sheets were as follows:

	March 31, 2018		March 31, 2017		December 31, 2017
	(In thousands)
Aggregates held for resale	$	123,053	$	120,392	$	115,268
Asphalt oil	61,647		50,538		30,360
Materials and supplies	19,493		22,074		18,650
Merchandise for resale	16,378		16,546		14,905
Natural gas in storage (current)	10,936		11,282		20,950
Other	26,285		29,777		26,450
Total	$	257,792	$	250,609	$	226,583