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Valuation And Qualifying Accounts
 12 Months Ended
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts
Materion Corporation and Subsidiaries
Schedule II—Valuation and Qualifying Accounts
 
(Thousands)
Allowance for uncollectible accounts:202120202019
Balance at Beginning of Period$536 $392 $616 
Additions:
Charged to Costs and Expenses (1)65 224 (39)
Charged to Other Accounts(7)225 — — 
Deductions (2)(282)(80)(185)
Balance at End of Period$544 $536 $392 
Allowance for inventory reserves:202120202019
Balance at Beginning of Period$22,149 $14,697 $13,065 
Additions:
Charged to Costs and Expenses (3)506 9,282 2,367 
Charged to Other Accounts(7)4,219 — — 
Deductions (4)(2,769)(1,830)(735)
Balance at End of Period$24,105 $22,149 $14,697 
Valuation allowance on deferred tax assets:202120202019
Balance at Beginning of Period$14,134 $17,676 $15,917 
Additions:
Charged to Costs and Expenses (5)497 884 2,475 
Charged to Other Accounts(7)1,019 — — 
Deductions (6)$(10,693)$(4,426)$(716)
Balance at End of Period$4,957 $14,134 $17,676 
(1) Provision for uncollectible accounts included in expenses.
(2) Bad debts written-off, net of recoveries.
(3) Provisions for surplus and obsolete inventory and lower cost or net realizable value included in expenses.
(4) Inventory write-offs.
(5) Increase in valuation allowance is recorded as a component of the provision for income taxes.
(6) 2021 includes a $6.9 million valuation allowance reversal in the fourth quarter of 2021 and a $3.8 million balance sheet impact to deferred taxes.
(7) Change in foreign currency exchange rates and acquired reserves. See acquisition footnote B for acquisition details.