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Revenue from Contracts with Customers
9 Months Ended
Sep. 30, 2021
Revenue from Contract with Customer [Abstract]  
Revenue from Contract with Customer [Text Block] REVENUE FROM CONTRACTS WITH CUSTOMERS
    
Our contract asset balances, primarily associated with customer documentation requirements, were $16.9 million and $12.8 million as of September 30, 2021 and December 31, 2020, respectively. Contract assets, along with billed trade accounts receivable, are included in trade accounts receivable in our consolidated balance sheets.

Unearned income includes amounts in which the Company was contractually allowed to invoice prior to satisfying the associated performance obligations. Unearned income balances were $1.4 million and $2.7 million as of September 30, 2021 and December 31, 2020, respectively, and vary based on the timing of invoicing and performance obligations being met. Revenues recognized during the nine-month periods ended September 30, 2021 and September 30, 2020 deferred as of the end of the preceding year were not significant. During the nine-month periods ended September 30, 2021 and September 30, 2020, contract costs were not significant.

We disaggregate revenue from contracts with customers into Product Sales and Services within each segment, as noted in our two reportable segments in Note 10. In addition, we disaggregate revenue from contracts with customers by geography based on the following table below.
Three Months Ended
September 30,
Nine Months Ended
September 30,
2021202020212020
 (In Thousands)
Completion Fluids & Products
United States$22,529 $15,013 $72,353 $85,073 
International26,162 36,937 87,466 113,460 
48,691 51,950 159,819 198,533 
Water & Flowback Services
United States42,234 19,767 106,630 97,016 
International4,549 1,767 8,675 6,708 
46,783 21,534 115,305 103,724 
Total Revenue
United States64,763 34,780 178,983 182,089 
International30,711 38,704 96,141 120,168 
$95,474 $73,484 $275,124 $302,257