Adaptimmune Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Summary of Significant Accounting Policies - Available-for-sale securities (Details)

v3.8.0.1

Summary of Significant Accounting Policies - Available-for-sale securities (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) security
Available-for-sale securities
Aggregate Estimated Fair Value	$ 125,828
Proceeds from the maturity or redemption of available-for-sales debt securities	29,090
Losses recognized on the maturity of available-for-sale debt securities	$ 646
Number of available-for-sale securities in an unrealized loss position \| security	54
Number of available-for-sale securities in an unrealized loss position for more than one year \| security	0
Cash equivalents
Available-for-sale securities
Amortized cost	$ 1,610
Gross Unrealized Losses	(22)
Foreign currency translation adjustment	22
Aggregate Estimated Fair Value	1,610
Marketable securities
Available-for-sale securities
Amortized cost	124,406
Gross Unrealized Losses	(3,723)
Foreign currency translation adjustment	3,535
Aggregate Estimated Fair Value	124,218
Corporate Debt Securities Maturity Period Less Than Three Months \| Cash equivalents
Available-for-sale securities
Amortized cost	1,610
Gross Unrealized Losses	(22)
Foreign currency translation adjustment	22
Aggregate Estimated Fair Value	1,610
Corporate Debt Securities Maturity Period Three Months To One Year \| Marketable securities
Available-for-sale securities
Amortized cost	124,406
Gross Unrealized Losses	(3,723)
Foreign currency translation adjustment	3,535
Aggregate Estimated Fair Value	$ 124,218

- Definition

Amount represents the gain on foreign currency translation adjustment

+ References

No definition available.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
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-Subparagraph (aa)
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Amount of debt securities categorized neither as held-to-maturity nor trading.

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Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

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Number of investment positions in available-for-sale investments that have been in a continuous unrealized loss position for greater than or equal to a year for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

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The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.

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