Other Income, Net (Tables)

9 Months Ended

Sep. 30, 2016

Other Income and Expenses [Abstract]

Other Income, Net

Other income, net consisted of the following:

	Three Months Ended Sept. 30					Nine Months Ended Sept. 30
(Thousands of Dollars)	2016			2015		2016			2015
Interest income	$	1,385		$	312	$	6,439		$	4,939
Other nonoperating income	341			625		2,517			2,387
Insurance policy (expense) income	(1,148		)	689		(2,568		)	(1,578		)
Other income, net	$	578		$	1,626	$	6,388		$	5,748