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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2021
Accounting Policies [Abstract]  
Summary Of Activity Recorded Within The Allowance For Doubtful Accounts The following table summarizes activity recorded within the allowance for doubtful accounts and contract assets balances for the years ended December 31 (in thousands):
202120202019
Beginning balance$3,529 $5,951 $6,170 
Adoption of ASU 2016-13, cumulative-effect adjustment to retained earnings at January 1, 2020— 385 — 
Bad debt expense, net of recoveries898 1,321 2,577 
Accounts written off against allowance and other adjustments(689)(4,128)(2,796)
Ending balance$3,738 $3,529 $5,951 
Property, Plant and Equipment
The table below sets forth the depreciation expense recognized during the years ended December 31 (in thousands):
202120202019
Depreciation expense$13,110 $11,252 $10,666 
Components of property, plant, and equipment at December 31 consisted of the following (in thousands):
20212020
Land and land improvements$4,634 $4,605 
Building and improvements42,526 41,164 
Machinery and equipment194,015 188,853 
Construction in progress20,293 10,458 
Property, plant, and equipment, gross261,468 245,080 
Less: accumulated depreciation(164,583)(155,518)
Property, plant, and equipment, net$96,885 $89,562 
Schedule of New Accounting Pronouncements and Changes in Accounting Principles
Recent Accounting Pronouncements Adopted
StandardDescriptionFinancial Statement Effect or Other Significant Matters
ASU No. 2019-12
Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes
The amendments in this update simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and improve consistent application by clarifying and amending existing guidance. The amendments of this standard are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years.
The standard was effective for the Company as of January 1, 2021. The Company adopted the amendments in this update and the adoption did not have a material impact to the Company’s financial statements.


Date of adoption: Q1 2021
Recent Accounting Pronouncements Not Yet Adopted