Revenue
The Company manages its business on the basis of one operating segment and one reportable segment. As a result, the chief operating decision maker, who is the Chief Executive Officer, reviews financial information presented on a consolidated basis for purposes of making operating decisions, allocating resources and evaluating financial performance.

The Company’s revenue disaggregated by major product line consists of the following for the periods indicated:
Year Ended December 31,
(in thousands)202320222021
Net Sales
Delivery Systems
$206,630 $206,235 $139,464 
Consumables191,361 159,641 120,622 
Total net sales$397,991 $365,876 $260,086 

Net sales by geographic region were as follows for the periods indicated:
Year Ended December 31,
(in thousands)202320222021
Americas$227,709 $243,243 $169,426 
Asia-Pacific82,193 54,306 43,701 
Europe, the Middle East and Africa88,089 68,327 46,959 
Total net sales$397,991 $365,876 $260,086 

No single customer accounted for 10% or more of consolidated net sales during the years ended December 31, 2023, 2022, and 2021.

As of December 31, 2023, the Company had no customers that accounted for 10% or more of the Company’s accounts receivable balance. As of December 31, 2022, the Company had one customer that accounted for 12% of the Company’s accounts receivable balance.

The changes in allowance for estimated credit losses are as follows:

(in thousands)
Year Ended December 31, 2023
Beginning balance
$2,929 
Provision for estimated credit losses
5,153 
Write-offs, recoveries of previous write-offs, and foreign currency translation impact
(1,478)
Ending balance
$6,604 

Historical Timeline

Fiscal YearFiled
2023Mar 12, 2024Showing above
2022Mar 1, 2023
2021Mar 1, 2022

About Revenue Disclosures

Revenue disclosures under ASC 606 explain how a company identifies performance obligations, allocates transaction prices, and determines when revenue is recognized. This section is essential for understanding whether reported revenue reflects genuine economic activity or aggressive accounting choices. Analysts examine the mix of point-in-time versus over-time recognition, which directly affects revenue timing and comparability.

Key signals: rising contract liabilities (deferred revenue) suggest strong future revenue visibility, while declining contract assets may indicate slowing project milestones. Watch for variable consideration estimates — rebates, returns, and performance bonuses that require management judgment. Significant changes in disaggregated revenue by geography or product line can reveal shifting business mix before it appears in headline numbers. Compare revenue growth against contract liability growth to assess sustainability, and scrutinize any changes in the timing of recognition that coincide with earnings pressure.