Income Taxes Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current:
Federal	$ 76,902	$ 63,266	$ 66,408
State	6,567	4,574	6,849
Foreign	188	76	190
Total Current	83,657	67,916	73,447
Deferred:
Federal	17,317	20,497	18,220
State	1,753	916	1,347
Foreign	193	201	(354)
Total Deferred	19,263	21,614	19,213
Total	$ 102,920	$ 89,530	$ 92,660

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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