XML 152 R131.htm IDEA: XBRL DOCUMENT v3.10.0.1
Income Taxes - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
 [2],[3]
Jul. 01, 2018
 [2],[4]
Apr. 01, 2018
 [5]
Dec. 31, 2017
Oct. 01, 2017
 [7],[8]
Jul. 02, 2017
 [7],[9]
Apr. 02, 2017
 [10]
Dec. 31, 2018
Dec. 31, 2017
Jan. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Taxes [Line Items]                            
Total (benefit) provision for income taxes   $ (32,662) [1],[2] $ 20,863 $ 18,975 $ 8,846 $ 204,007 [6],[7] $ 24,017 $ 31,901 $ 6,795 $ 16,022 $ 266,720   $ (11,639)  
Effective tax rate                   3.40% 50.90%   21.10%  
Provisional amount of additional income tax expense   (49,500)       186,000                
Transition tax on mandatory deemed repatriation of foreign earnings                   $ (51,700) $ 161,000      
Expense related to remeasurement of deferred tax assets and liabilities                     33,600      
Expense (benefit) associated with impact of correlative adjustments on tax positions                   2,200 (10,300)      
Tax savings due to the tax holiday                   $ 11,900 $ 24,800   $ 17,000  
Tax savings due to the tax holiday, per share                   $ 0.06 $ 0.12   $ 0.08  
Tax holiday expiration date                   December 31, 2020        
Valuation allowance includes net deferred tax assets   69,852       63,919       $ 69,852 $ 63,919      
Tax credit carryforwards, approximately           98,400         98,400      
Tax credits carryforwards   69,091       76,083       69,091 76,083      
Reduction in un recognized tax benefits   43,395       36,263       43,395 36,263   $ 38,958 $ 36,792
Unrecognized tax benefits, if recognized would impact effective tax rate   30,700               30,700        
Unrecognized tax benefits, if recognized would impact deferred taxes   12,600               12,600        
Accrued interest and penalties   300       300       300 300      
Interest and penalties related to income tax, expense (benefit)                   100 (100)   $ (100)  
Deferred tax   5,900               5,900        
Reduction of federal of state benefit reserves                   2,000        
Unrecognized Tax Benefits, Period Increase (Decrease)                   200        
Subsequent Event [Member]                            
Income Taxes [Line Items]                            
Total (benefit) provision for income taxes $ 27,900                          
Reduction in un recognized tax benefits $ 33,800                          
United States                            
Income Taxes [Line Items]                            
Tax credits carryforwards, business           900         $ 900      
Tax credit carryforward, expiration date                     2028      
State and Local Jurisdiction                            
Income Taxes [Line Items]                            
Provisional amount of additional income tax expense   49,500       186,000                
Transition tax on mandatory deemed repatriation of foreign earnings                   51,700        
Expense (benefit) associated with impact of correlative adjustments on tax positions                       $ 10,300    
Tax credits carryforwards           97,500         $ 97,500      
Reduction in un recognized tax benefits   $ 43,400               $ 43,400        
State and Local Jurisdiction | Earliest Tax Year                            
Income Taxes [Line Items]                            
Tax credit carryforward, expiration date                     2019      
State and Local Jurisdiction | Latest Tax Year                            
Income Taxes [Line Items]                            
Tax credit carryforward, expiration date                     2038      
State and Local Jurisdiction | Do Not Expire                            
Income Taxes [Line Items]                            
Tax credits carryforwards           $ 55,600         $ 55,600      
[1] Restructuring and other includes a $17.7 million fair value adjustment to increase the MiR acquisition contingent consideration, $0.8 million of employee severance charges, and $0.5 million acquisition related expenses and compensation, partially offset by a $7.4 million gain for the decrease in the fair value of the Universal Robots contingent consideration liability.
[2] Teradyne recorded pension and post retirement net actuarial (gains) losses of $(0.1) million, $0.3 million and $(3.5) million for the second, third and fourth quarter in 2018, respectively. See Note B: “Accounting Policies” for a discussion of Teradyne’s accounting policy.
[3] Restructuring and other includes $1.7 million of employee severance charges, $0.8 million of acquisition related expenses and compensation, partially offset by a $0.8 million gain for the decrease in the fair value of the Universal Robots contingent consideration liability.
[4] Restructuring and other includes a $5.0 million gain for the decrease in the fair value of the Universal Robots contingent consideration liability, partially offset by $3.9 million of employee severance charges and $0.8 million of acquisition related expenses and compensation.
[5] Restructuring and other includes a $3.5 million gain for the decrease in the fair value of the Universal Robots contingent consideration liability, partially offset by $2.5 million of acquisition related expenses and compensation and $2.4 million of employee severance charges.
[6] Restructuring and other includes a $6.0 million fair value adjustment to increase the Universal Robots acquisition contingent consideration, $1.8 million of employee severance charges, and $1.1 million of charges for impairment of fixed assets.
[7] Teradyne recorded pension and post retirement net actuarial gains of $2.8 million and $3.8 million for the second and fourth quarter in 2017, respectively. See Note B: “Accounting Policies” for a discussion of Teradyne’s accounting policy.
[8] Restructuring and other includes $5.1 million of property insurance recovery related to the Japan earthquake, a $0.4 million credit related to previously impaired lease termination of a Wireless Test facility in Sunnyvale, CA, and a $0.3 million credit for the decrease in the fair value of the Universal Robots contingent consideration liability, partially offset by $0.8 million of Japan earthquake related expenses and $0.6 million of employee severance charges.
[9] Restructuring and other includes a $1.5 million charge for a fair value adjustment to increase the Universal Robots acquisition contingent consideration, and $0.8 million of employee severance charges.
[10] Restructuring and other includes a $1.3 million charge for a lease impairment of a Wireless Test facility in Sunnyvale, CA, a $0.6 million fair value adjustment to increase the Universal Robots acquisition contingent consideration, and $0.6 million of employee severance charges.