Income Taxes (Tables)

9 Months Ended

Sep. 30, 2015

Income Taxes [Abstract]

Reconciliation Of Provision For Income Taxes

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2015		2014		2015		2014
Consolidated tax provision at federal statutory rate	35.0	%	35.0	%	35.0	%	35.0	%
State income tax provisions, net of federal income
tax benefit	31.4		1.1		7.8		1.1
Tax reserve adjustment	(15.9)		5.5		(3.7)		0.6
Domestic production activities deduction	15.8		(16.9)		3.6		(5.3)
Changes in certain deferred tax balances	(9.5)		-		6.2		(1.7)
Federal research and development credit	5.4		(7.8)		1.1		(2.4)
All other, net	0.9		2.0		(0.3)		0.6
Effective tax rate	63.1	%	18.9	%	49.7	%	27.9	%