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Basis of Presentation and Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 30, 2019
Accounting Policies [Abstract]  
Summary of Activity of Company's Allowance for Doubtful Accounts
The following is a summary of the activity of the Company’s allowance for doubtful accounts for the three months ended March 30, 2019 and March 31, 2018 (in thousands):
 
 
 
 
Balance at
 
 
 
 
 
 
 
 
Balance at
 
 
 
Beginning
 
 
 
 
 
 
 
 
End of
 
 
 
of Period
 
 
Additions
 
 
Deduction
 
 
Period
 
Allowance for Doubtful Accounts
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
March 30, 2019
 
$
7,663
 
 
$
2,159
 
 
$
(2,324
)
 
$
7,498
 
March 31, 2018
 
$
6,109
 
 
$
1,056
 
 
$
(1,033
)
 
$
6,132
 
Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis
The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at March 30, 2019 (in thousands):
 
 
 
 
 
 
Quoted Prices
 
 
 
 
 
 
 
 
 
 
 
 
in Active
 
 
Significant
 
 
 
 
 
 
 
 
 
Markets
 
 
Other
 
 
Significant
 
 
 
Total at
 
 
for Identical
 
 
Observable
 
 
Unobservable
 
 
 
March 30,
 
 
Assets
 
 
Inputs
 
 
Inputs
 
 
 
2019
 
 
(Level 1)
 
 
(Level 2)
 
 
(Level 3)
 
Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Treasury securities
 
$
98,576
 
 
$
 
 
$
98,576
 
 
$
 
Foreign government securities
 
 
3,476
 
 
 
 
 
 
3,476
 
 
 
 
Corporate debt securities
 
 
367,621
 
 
 
 
 
 
367,621
 
 
 
 
Time deposits
 
 
52,507
 
 
 
 
 
 
52,507
 
 
 
 
Waters 401(k) Restoration Plan assets
 
 
33,951
 
 
 
33,951
 
 
 
 
 
 
 
Foreign currency exchange contracts
 
 
355
 
 
 
 
 
 
355
 
 
 
 
Interest rate cross-currency swap agreements
 
 
7,120
 
 
 
 
 
 
7,120
 
 
 
 
Total
 
$
563,606
 
 
$
33,951
 
 
$
529,655
 
 
$
 
Liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contingent consideration
 
$
2,591
 
 
$
 
 
$
 
 
$
2,591
 
Foreign currency exchange contracts
 
 
619
 
 
 
 
 
 
619
 
 
 
 
Total
 
$
3,210
 
 
$
 
 
$
619
 
 
$
2,591
 
The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at December 31, 2018 (in thousands):
 
 
 
 
 
 
Quoted Prices
 
 
 
 
 
 
 
 
 
 
 
 
in Active
 
 
Significant
 
 
 
 
 
 
 
 
 
Markets
 
 
Other
 
 
Significant
 
 
 
Total at
 
 
for Identical
 
 
Observable
 
 
Unobservable
 
 
 
December 31,
 
 
Assets
 
 
Inputs
 
 
Inputs
 
 
 
2018
 
 
(Level 1)
 
 
(Level 2)
 
 
(Level 3)
 
Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Treasury securities
 
$
164,315
 
 
$
 
 
$
164,315
 
 
$
 
Foreign government securities
 
 
3,463
 
 
 
 
 
 
3,463
 
 
 
 
Corporate debt securities
 
 
723,059
 
 
 
 
 
 
723,059
 
 
 
 
Time deposits
 
 
108,638
 
 
 
 
 
 
108,638
 
 
 
 
Waters 401(k) Restoration Plan assets
 
 
33,104
 
 
 
33,104
 
 
 
 
 
 
 
Foreign currency exchange contracts
 
 
503
 
 
 
 
 
 
503
 
 
 
 
Interest rate cross-currency swap agreements
 
 
1,093
 
 
 
 
 
 
 
1,093
 
 
 
 
 
Total
 
$
1,034,175
 
 
$
33,104
 
 
$
1,001,071
 
 
$
 
Liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Contingent consideration
 
$
2,476
 
 
$
 
 
$
 
 
$
2,476
 
Foreign currency exchange contracts
 
 
224
 
 
 
 
 
 
224
 
 
 
 
Total
 
$
2,700
 
 
$
 
 
$
224
 
 
$
2,476
 
Summary of Foreign Currency Exchange Contracts and Interest Rate Cross-Currency Swap Agreements
The Company’s foreign currency exchange contracts and interest rate cross-currency swap agreements included in the consolidated balance sheets are classified as follows (in thousands):
 
 
 
March 30, 2019
 
 
December 31, 2018
 
 
 
Notional Value
 
 
Fair Value
 
 
Notional Value
 
 
Fair Value
 
Foreign currency exchange contracts:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other current assets
 
$
34,219
 
 
$
355
 
 
$
112,212
 
 
$
503
 
Other current liabilities
 
$
98,745
 
 
$
619
 
 
$
40,175
 
 
$
224
 
Interest rate cross-currency swap agreements:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets
 
$
300,000
 
 
$
7,120
 
 
$
300,000
 
 
$
1,093
 
Accumulated other comprehensive income
 
 
 
 
 
$
(7,120
)
 
 
 
 
 
$
(1,093
)
Gains (Losses) on Foreign Exchange Contracts
The following is a summary of the activity included in the statements of comprehensive income related to the foreign currency exchange contracts (in thousands):
 
 
  
Financial

Statement

Classification
 
  
Three Months Ended
 
 
  
March 30, 2019
 
  
March 31, 2018
 
Foreign currency exchange contracts:
  
 
 
 
  
 
 
 
  
 
 
 
Realized (losses) gains on closed contracts
  
 
Cost of sales
 
  
$
(543
  
$
1,937
 
Unrealized gains (losses) on open contracts
  
 
Cost of sales
 
  
 
526
 
  
 
(985
 
  
 
 
 
  
 
 
 
  
 
 
 
Cumulative net pre-tax (losses) gains
  
 
Cost of sales
 
  
$
(17
  
$
952
 
Interest rate cross-currency swap agreements:
  
 
 
 
  
 
 
 
  
 
 
 
Interest earned
  
 
Interest income
 
  
$
2,227
 
  
$
 
Unrealized gains on contracts
  
 
Stockholders’ equity
 
  
$
7,120
 
  
$
 
Summary of Activity of Company's Accrued Warranty Liability
The following is a summary of the activity of the Company’s accrued warranty liability for the three months ended March 30, 2019 and March 31, 2018 (in thousands):
 
 
 
Balance at
 
 
 
 
 
 
 
 
Balance at
 
 
 
Beginning
 
 
Accruals for
 
 
Settlements
 
 
End of
 
 
 
of Period
 
 
Warranties
 
 
Made
 
 
Period
 
Accrued warranty liability:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
March 30, 2019
 
$
12,300
 
 
$
1,500
 
 
$
(2,338
)
 
$
11,462
 
March 31, 2018
 
$
13,026
 
 
$
1,767
 
 
$
(2,167
)
 
$
12,626