Concentrations of credit risk and major customers |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2017 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Risks and Uncertainties [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Concentrations of credit risk and major customers |
Concentrations of credit risk and major customers
Financial instruments that potentially subject us to significant concentrations of credit risk consist primarily of accounts receivable - billed, billable and unbilled.
The majority of our business is in the United States. Revenue from foreign projects and offices was 28%, 28% and 26% of total revenue for the years ended September 30, 2017, 2016 and 2015, respectively.
In the year ended September 30, 2017, approximately 49% of our total revenue was derived from state government agencies, many of whose programs received significant federal funding, 26% from foreign government agencies, 19% from U.S.-based Federal Government agencies, and 6% from other sources including local municipalities and commercial customers. We believe that the credit risk associated with our receivables is limited due to the credit worthiness of these customers.
During fiscal year 2017, the U.S. Federal Government, the U.K. Government and the state of New York each provided more than 10% of our annual revenue. Within these governments, we may be serving several distinct agencies. Revenue from the U.S. Federal Government was exclusively within the U.S. Federal Segment. Revenue from the U.K. Government was both within the Health Services and Human Services Segments. Revenue from the state of New York was exclusively within our Health Services Segment. The proportion of revenue recognized from customers providing in excess of 10% of our consolidated revenue for each of the three years ended September 30, 2017 was from the following governments:
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