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Income Taxes (Tables)
 6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]  
Schedule Of Effective Income Tax Rate For Continuing Operations
he significant differences between the U.S. federal statutory rate and the effective income tax rate for the six months ended June 30, 2018 and 2017 are as follows:
(In thousands, except percentages)
2018
 
2017
Six Months Ended June 30,
Amount
 
%
 
Amount
 
%
Income tax expense at federal statutory rate
$
8,971

 
21.0

 
$
18,603

 
35.0

U.S. Tax on Foreign Branch Income
736

 
1.7

 
—

 
—

Foreign rate differences
669

 
1.6

 
876

 
1.8

State taxes, net of federal income tax benefit
537

 
1.2

 
615

 
1.2

Stock-based compensation
176

 
0.4

 
182

 
0.3

Non-deductible expenses
123

 
0.3

 
229

 
0.4

Tax contingency accruals and tax settlements
100

 
0.2

 
118

 
0.2

Valuation allowance for capital loss carry-forwards
91

 
0.2

 
—

 
—

Changes in estimates related to prior year tax provision
(34
)
 
(0.1
)
 
132

 
0.2

Unremitted earnings from foreign operations
—

 
—

 
(113
)
 
(0.2
)
Domestic production activities deduction
—

 
—

 
(390
)
 
(0.7
)
Remitted earnings from foreign operations
—

 
—

 
(413
)
 
(0.8
)
Increase in value of kaleo investment held abroad
—

 
—

 
(2,326
)
 
(4.4
)
Settlement of Terphane acquisition escrow
—

 
—

 
(4,200
)
 
(7.9
)
Worthless stock deduction
—

 
—

 
(8,057
)
 
(15.2
)
Research and development tax credit
(188
)
 
(0.4
)
 
(285
)
 
(0.5
)
Foreign Derived Intangible Income (FDII)
(309
)
 
(0.7
)
 
—

 
—

Valuation allowance due to foreign losses and impairments
(383
)
 
(0.9
)
 
275

 
0.5

Foreign tax incentives
(655
)
 
(1.5
)
 
—

 
—

Effective income tax rate
$
9,834

 
23.0

 
$
5,246

 
9.9