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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2019
Income Tax Disclosure [Abstract]  
Schedule of difference between the effective income tax rate and the U.S. federal statutory income tax rate
The following table presents the principal reasons for the difference between the Company's effective income tax rate and the U.S. federal statutory income tax rate:
 
 
Year Ended December 31,
 
 
2019
 
2019
 
2018
 
2018
 
2017
 
2017
U.S. federal statutory income tax rate
 
21.0
 %
 
$
14.0

 
21.0
 %
 
$
8.6

 
35.0
 %
 
$
32.1

U.S. state income taxes, net of federal income tax benefit
 
1.4
 %
 
0.9

 
(1.0
)%
 
(0.4
)
 
1.9
 %
 
1.7

Foreign tax rate differences (a)
 
3.6
 %
 
2.4

 
6.8
 %
 
2.8

 
(3.4
)%
 
(3.1
)
Tax on foreign dividends (b)
 
0.9
 %
 
0.6

 
3.6
 %
 
1.5

 
(0.3
)%
 
(0.3
)
Foreign financing structure (c)
 
(3.0
)%
 
(2.0
)
 
(5.1
)%
 
(2.1
)
 
(2.2
)%
 
(2.0
)
Change in statutory tax rates (d)
 
—
 %
 
—

 
(3.9
)%
 
(1.6
)
 
(10.6
)%
 
(9.7
)
Research and development and other tax credits
 
(6.2
)%
 
(4.1
)
 
(10.5
)%
 
(4.3
)
 
(3.3
)%
 
(3.0
)
Excess tax benefits from stock compensation
 
(0.2
)%
 
(0.1
)
 
(2.9
)%
 
(1.2
)
 
(4.9
)%
 
(4.5
)
Uncertain income tax positions
 
(1.9
)%
 
(1.3
)
 
2.0
 %
 
0.8

 
0.8
 %
 
0.7

Other differences, net
 
1.1
 %
 
0.7

 
(0.5
)%
 
(0.2
)
 
(0.6
)%
 
(0.5
)
Effective income tax rate
 
16.7
 %
 
$
11.1

 
9.5
 %
 
$
3.9

 
12.4
 %
 
$
11.4

_______________________

(a)
Represents the impact on the Company's effective tax rate due the mix of earnings among taxing jurisdictions with differing statutory rates. In 2019 and 2018, the U.S. federal tax rate is lower than the tax rate in Germany and the Netherlands.
(b)
For 2017, the amount reflects the net benefit of the indefinite reinvestment assertion of $4.1 million, less the $3.8 million mandatory one-time tax on the accumulated E&P of foreign subsidiaries from the Tax Act. For 2018, the amount reflects a measurement-period adjustment of $0.8 million to the mandatory one-time tax on the accumulated E&P of foreign subsidiaries, and in 2019 and 2018 includes federal GILTI impacts and state taxation of foreign E&P.
(c)
Represents the impact on the Company's effective tax rate of the Company's financing strategies.
(d)
Represents the net benefit from remeasurement of the net deferred income tax liabilities from tax rate changes. For 2017, the amount reflects a tax benefit of $10.3 million from the Tax Act, less $0.6 million of tax expense from a state tax rate change in Germany. For 2018, the amount reflects an additional measurement-period tax benefit adjustment of $0.9 million from the Tax Act, plus $0.7 million of tax benefit from a federal tax rate change in the Netherlands.
Schedule of the U.S. and foreign components of income from continuing operations before income taxes
The following table presents the U.S. and foreign components of income from continuing operations before income taxes:
 
 
Year Ended December 31,
 
 
2019
 
2018
 
2017
Income (loss) from continuing operations before income taxes:
 
 

 
 

 
 

U.S. 
 
$
30.1

 
$
(1.7
)
 
$
53.6

Foreign
 
36.4

 
42.8

 
38.1

Total
 
$
66.5

 
$
41.1

 
$
91.7
Schedule of components of the provision (benefit) for income taxes
The following table presents the components of the provision (benefit) for income taxes:
 
 
Year Ended December 31,
 
 
2019
 
2018
 
2017
Provision (benefit) for income taxes:
 
 

 
 

 
 

Current:
 
 

 
 

 
 

Federal
 
$
0.3

 
$
(3.0
)
 
$
4.7

State
 
(0.2
)
 
0.1

 
0.5

Foreign
 
7.6

 
8.7

 
6.4

Total current income tax provision
 
7.7

 
5.8

 
11.6

Deferred:
 
 

 
 

 
 

Federal
 
3.0

 
(0.6
)
 
(1.8
)
State
 
0.8

 
(0.2
)
 
(0.1
)
Foreign
 
(0.4
)
 
(1.1
)
 
1.7

Total deferred income tax provision
 
3.4

 
(1.9
)
 
(0.2
)
Total provision for income taxes
 
$
11.1

 
$
3.9

 
$
11.4
Schedule of components of deferred tax assets and liabilities The components of deferred income tax assets and liabilities, net of reserves for uncertain tax positions and valuation allowances, are as follows:
 
 
December 31,
 
 
2019
 
2018
Deferred income tax assets (liabilities)
 
 

 
 

Research and development tax credits
 
$
21.5

 
$
20.0

Employee benefits
 
15.9

 
16.5

Net operating losses and other tax credits
 
6.4

 
7.4

Lease liabilities
 
3.1

 
—

Accrued liabilities
 
2.1

 
2.3

Interest limitation
 
—

 
1.7

Inventories
 
(0.6
)
 
1.0

Lease right-of-use assets
 
(2.8
)
 
—

Intangibles
 
(4.7
)
 
(4.2
)
Accelerated depreciation
 
(28.0
)
 
(28.8
)
Other
 
0.5

 
0.5

Net deferred income tax assets
 
$
13.4

 
$
16.4

 
 
 
 
 
Deferred income tax assets (liabilities)
 
 

 
 

Accelerated depreciation
 
$
(16.7
)
 
$
(16.6
)
Intangibles
 
(3.0
)
 
(3.2
)
Inventories
 
(0.9
)
 
(1.0
)
Lease right-of-use assets
 
(0.7
)
 
—

Net operating losses
 
0.2

 
0.2

Lease liabilities
 
0.7

 
—

Employee benefits
 
7.5

 
6.3

Other
 
—

 
(0.1
)
Net deferred income tax liabilities
 
$
(12.9
)
 
$
(14.4
)
Schedule of reconciliation of the total amounts of uncertain tax positions The following is a tabular reconciliation of the total amounts of uncertain tax positions as of and for the years ended December 31, 2019, 2018 and 2017:
 
 
For the Years Ended
December 31,
 
 
2019
 
2018
 
2017
Balance at January 1,
 
$
10.1

 
$
10.0

 
$
10.3

Increases in prior period tax positions
 
0.7

 
0.1

 
0.4

Decreases in prior period tax positions
 
(1.2
)
 
—

 
(1.0
)
Increases in current period tax positions
 
0.6

 
0.8

 
0.7

Decreases due to lapse of statutes of limitations
 
(1.5
)
 
(0.6
)
 
(1.0
)
Increases due to change in tax rates
 
—

 
0.1

 
0.4

Decreases due to settlements with tax authorities
 
(0.9
)
 
(0.2
)
 
—

Increases (decreases) from foreign exchange rate changes
 
—

 
(0.1
)
 
0.2

Balance at December 31,
 
$
7.8


$
10.1


$
10.0