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Note 13 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2015
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   

Year Ended December 31,

 
   

2015

   

2014

   

2013

 
   

(Dollars in thousands)

 

Current (provision) benefit for income taxes:

                       

Federal

  $ (83,541 )   $ (28,942 )   $ 11,766  

State

    (6,803 )     (6,159 )     (1,880 )
      (90,344 )     (35,101 )     9,886  

Deferred (provision) benefit for income taxes:

                       

Federal

    (24,395 )     (84,704 )     (56,752 )

State

    (14,241 )     (14,294 )     (22,117 )
      (38,636 )     (98,998 )     (78,869 )

(Provision) benefit for income taxes

  $ (128,980 )   $ (134,099 )   $ (68,983 )
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   

December 31,

 
   

2015

   

2014

 
   

(Dollars in thousands)

 

Inventory valuation adjustments

  $ 98,141     $ 84,443  

Financial accruals

    129,120       39,653  

Federal net operating loss carryforwards

    97,507       102,971  

State net operating loss carryforwards

    60,739       40,731  

Tax credit carryforwards

    1,246       4,428  

Goodwill impairment charges

    4,287       7,150  

Other, net

    6,310       (413 )

Total deferred tax asset

    397,350       278,963  

Less: Valuation allowance

    (1,156 )     (2,561 )

Net deferred tax asset

  $ 396,194     $ 276,402  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   

Year Ended December 31,

 
   

2015

   

2014

   

2013

 
   

(Dollars in thousands)

 

Income before taxes

  $ 342,489     $ 349,964     $ 257,698  
                         

(Provision) benefit for income taxes at federal statutory rate

  $ (119,871 )   $ (122,488 )   $ (90,194 )

(Increases) decreases in tax resulting from:

                       

State income taxes, net of federal benefit

    (11,680 )     (12,961 )     (9,426 )

Net deferred tax asset valuation (allowance) benefit

    1,405       2,030       13,115  

(Increases) decreases in liability for unrecognized tax benefits

    (1,611 )     (1,605 )     16,105  

Nondeductible expenses and credits

    (2,164 )            

Domestic production activities deduction

    6,150       1,562        

Other, net

    (1,209 )     (637 )     1,417  

(Provision) benefit for income taxes

  $ (128,980 )   $ (134,099 )   $ (68,983 )

Effective tax rate

    37.7 %     38.3 %     26.8 %
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
   

Year Ended December 31,

 
   

2015

   

2014

 
   

(Dollars in thousands)

 

Balance, beginning of the year

  $ 2,536     $ 472  

Assumed with Ryland merger

    6,182        

Changes based on tax positions related to the current year

    2,060       1,567  

Changes for tax position in prior years

          497  

Reductions due to lapse of statute of limitations

    (147 )      

Settlements

           

Balance, end of the year

  $ 10,631     $ 2,536