Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Schedule of Income Tax Reconciliation (Details)

v3.8.0.1
INCOME TAXES - Schedule of Income Tax Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]      
Expected taxes at current federal statutory income tax rate $ 86,632 $ 76,321 $ 66,312
State income taxes, net of federal tax benefit 5,434 5,791 5,764
Tax Act revaluation of deferred tax balances 19,687 0 0
Manufacturing deduction (7,580) (6,708) (5,917)
Federal tax credits (484) (7,229) (6,172)
Non-deductible costs and other 575 344 739
Income tax expense $ 104,264 $ 68,519 $ 60,726