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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2017
Income Tax Disclosure [Abstract]  
Income from continuing operations
Income from continuing operations for the three years ended December 31 was as follows:
 
2017
 
2016
 
2015
U.S. operations
$
7,465

 
$
54,018

 
$
51,189

Foreign operations
(8,757
)
 
12,473

 
(765
)
Total
$
(1,292
)
 
$
66,491

 
$
50,424

Income tax expense (benefit)
Income tax expense (benefit) for the three years ended December 31 was as follows:
 
2017
 
2016
 
2015
Current:
 
 
 
 
 
Federal
$
2,590

 
$
15,962

 
$
15,117

Foreign
8,701

 
3,035

 
3,992

State
812

 
1,859

 
1,685

 
$
12,103

 
$
20,856

 
$
20,794

Deferred:
 

 
 

 
 

Federal
$
1,640

 
$
(472
)
 
$
(481
)
Foreign
(8,699
)
 
(434
)
 
(1,888
)
State
(131
)
 
(73
)
 
(89
)
 
$
(7,190
)
 
$
(979
)
 
$
(2,458
)
Total:
 

 
 

 
 

Federal
$
4,230

 
$
15,490

 
$
14,636

Foreign
2

 
2,601

 
2,104

State
681

 
1,786

 
1,596

Total Income Tax Expense
$
4,913

 
$
19,877

 
$
18,336

Summary of tax loss carryforward
Tax loss carryforwards and expiration periods by international operation as of December 31, 2017 were as follows:
 
Amount
 
Carryforward Period
Netherlands
$
23,733

 
9 years
Germany
12,068

 
Unlimited
Sweden
1,586

 
Unlimited
Norway
655

 
Unlimited
Spain
4,555

 
Unlimited
Total
$
42,597

 
 
Effective tax rate reconciliation
Our effective income tax rate varied from the U.S. federal statutory tax rate for the three years ended December 31 as follows:
 
2017
 
2016
 
2015
Tax at statutory rate
35.0
 %
 
35.0
 %
 
35.0
 %
(Decreases) increases in the tax rate from:
 
 
 

 
 

State and local taxes, net of federal benefit
(21.1
)
 
1.7

 
2.2

Effect of foreign operations
(70.8
)
 
(5.5
)
 
(5.1
)
Transaction costs
(226.3
)
 

 

Effect of 2018 deferred rate change
(154.3
)
 

 

Transition Tax
(28.0
)
 

 

Impairment of Long-Lived Assets

 

 
7.0

Effect of changes in valuation allowances
(126.5
)
 
1.9

 
1.5

Domestic production activities deduction
28.3

 
(2.2
)
 
(2.7
)
Share-based payments
90.4

 

 

Research & Development credit
82.9

 
(1.3
)
 
(1.7
)
Other, net
10.2

 
0.3

 
0.2

Effective income tax rate
(380.2
)%
 
29.9
 %
 
36.4
 %
Deferred tax assets and liabilities
Deferred tax assets and liabilities were comprised of the following as of December 31:
 
2017
 
2016
Deferred Tax Assets:
 
 
 
Inventories, principally due to changes in inventory reserves
$
4,757

 
$
332

Employee wages and benefits, principally due to accruals for financial reporting purposes
11,031

 
14,723

Warranty reserves accrued for financial reporting purposes
2,578

 
3,617

Receivables, principally due to allowance for doubtful accounts and tax accounting method for equipment rentals
2,138

 
1,413

Tax loss carryforwards
11,383

 
7,821

Tax credit carryforwards
1,575

 
1,228

Other
3,630

 
2,126

Gross Deferred Tax Assets
$
37,092

 
$
31,260

Less: valuation allowance
(9,691
)
 
(6,865
)
Total Net Deferred Tax Assets
$
27,401

 
$
24,395

Deferred Tax Liabilities:
 

 
 

Property, Plant and Equipment, principally due to differences in depreciation and related gains
9,042

 
6,947

Goodwill and Intangible Assets
60,450

 
4,180

Total Deferred Tax Liabilities
$
69,492

 
$
11,127

Net Deferred Tax (Liabilities) Assets
$
(42,091
)
 
$
13,268

Reconciliation of unrecognized tax benefits
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
 
2017
 
2016
Balance at January 1,
$
2,477

 
$
2,326

Increases as a result of tax positions taken during the current year
329

 
545

Increase related to prior period tax positions of acquired entities
236

 

Decreases relating to settlement with tax authorities
(68
)
 
(6
)
Reductions as a result of a lapse of the applicable statute of limitations
(770
)
 
(523
)
Increases as a result of foreign currency fluctuations
28

 
135

Balance at December 31,
$
2,232

 
$
2,477