Income Taxes (Tables)

9 Months Ended

Sep. 30, 2018

Income Taxes [Abstract]

Reconciliation Of Provision For Income Taxes

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2018		2017		2018		2017
Consolidated tax provision at federal statutory rate	21.0	%	35.0	%	21.0	%	35.0	%
State income tax provisions, net of federal income
tax benefit	0.8		2.8		0.4		1.7
Remeasurement of certain deferred tax balances	-		-		0.9		-
Tax reserve adjustment	0.5		(1.0)		0.5		(0.2)
Changes in certain deferred tax balances	(10.4)		7.1		(8.6)		0.2
Goodwill impairment	(10.4)		-		(10.3)		(10.2)
Shared-based payments	-		0.1		(0.8)		(0.2)
Federal research and development tax credit	(1.0)		1.5		(1.0)		0.3
All other, net	0.4		0.1		0.4		(0.1)
Effective tax rate	0.9	%	45.6	%	2.5	%	26.5	%