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Change in Accounting Principle
 12 Months Ended
Dec. 31, 2015
Accounting Changes and Error Corrections [Abstract]  
Change in Accounting Principle
Change in Accounting Principle
 
During the first quarter of 2015, the Company elected to early adopt the provisions of ASU 2015-03 “Simplifying the Presentation of Debt Issuance Costs”.  In accordance with provisions of the FASB ASU topic on “Accounting Changes and Error Corrections” all prior periods presented have been retrospectively adjusted to apply the change in accounting principle.  For a summary of the adjustments, see below:
 
 
Previous Accounting Method
 
Effect of Change In
 
As Reported
(thousands of dollars)
 
December 31, 2015
 
Accounting Principle
 
December 31, 2015
Other assets
 
$
16,211

 
$
(3,526
)
 
$
12,685

 
 
 
 
 
 
 
Long-term debt
 
$
493,686

 
$
(3,526
)
 
$
490,160


 
 
As Originally Reported
 
Effect of Change In
 
As Currently Reported
 
 
December 31, 2014
 
Accounting Principle
 
December 31, 2014
Other assets
 
$
14,736

 
$
(4,193
)
 
$
10,543

 
 
 
 
 
 
 
Long-term debt
 
$
492,443

 
$
(4,193
)
 
$
488,250