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Income Tax Expense Continuing Operations
9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]  
Income Tax Expense - Continuing Operations

14. Income Tax Expense – Continuing Operations

 

The following table provides a reconciliation of income tax expense calculated at the net composite federal and state statutory rate on income from continuing operations before income taxes and income tax expense for continuing operations reported on the Company’s consolidated statements of income:

 

    Three Months Ended
 September 30,
    Nine Months Ended
 September 30,
 
(in thousands)   2016     2015     2016     2015  
Income Before Income Taxes – Continuing Operations   $ 19,757     $ 22,230     $ 60,378     $ 57,749  
Tax Computed at Company’s Net Composite Federal and State Statutory Rate (39%)     7,705       8,670       23,547       22,522  
Increases (Decreases) in Tax from:                                
Federal Production Tax Credits     (1,423 )     (1,437 )     (4,994 )     (5,147 )
R&D Tax Credits     (223 )     2       (445 )     (7 )
North Dakota Wind Tax Credit Amortization – Net of Federal Taxes     (212 )     (212 )     (637 )     (637 )
Employee Stock Ownership Plan Dividend Deduction     (157 )     (171 )     (472 )     (514 )
Corporate Owned Life Insurance     (92 )     185       (664 )     (39 )
Investment Tax Credits     (87 )     (143 )     (262 )     (428 )
Adjustment for Uncertain Tax Positions     (57 )     281       (31 )     367  
AFUDC Equity     (51 )     (144 )     (238 )     (369 )
Section 199 Domestic Production Activities Deduction     (9 )     (362 )     (207 )     (1,087 )
Other Items – Net     (231 )     (148 )     141       (59 )
Income Tax Expense – Continuing Operations   $ 5,163     $ 6,521     $ 15,738     $ 14,602  
Effective Income Tax Rate – Continuing Operations     26.1 %     29.3 %     26.1 %     25.3 %

 

The following table summarizes the activity related to our unrecognized tax benefits:

 

(in thousands)   2016     2015  
Balance on January 1   $ 468     $ 222  
Increases Related to Tax Positions for Prior Years     40       236  
Increases Related to Tax Positions for Current Year     26       131  
Uncertain Positions Resolved During Year     (97 )      
Balance on September 30   $ 437     $ 589  
   

The balance of unrecognized tax benefits as of September 30, 2016 would reduce the Company’s effective tax rate if recognized. The total amount of unrecognized tax benefits as of September 30, 2016 is not expected to change significantly within the next 12 months. The Company classifies interest and penalties on tax uncertainties as components of the provision for income taxes in its consolidated statement of income. There was no amount accrued for interest on tax uncertainties as of September 30, 2016.

 

The Company and its subsidiaries file a consolidated U.S. federal income tax return and various state income tax returns. As of September 30, 2016, with limited exceptions, the Company is no longer subject to examinations by taxing authorities for tax years prior to 2013 for federal income taxes and Minnesota and North Dakota state income taxes.