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Leases (Tables)

12 Months Ended

Dec. 31, 2017

Leases

Schedule of current significant leased properties

        The following table contains information about our current significant leased properties as of December 31, 2017:

Location		Approximate Square Feet			Use		Lease expiry date
Cranbury, New Jersey			90,000		Office and laboratory		September 2025
Durham, North Carolina			5,603		Office		June 2018
Buckinghamshire, United Kingdom			9,821		Office		September 2020
Munich, Germany			4,751		Office		April 2022

Schedule of aggregate annual future minimum lease payments under the operating leases

        At December 31, 2017, aggregate annual future minimum lease payments under these leases are as follows:

(in thousands)		2018			2019			2020			2021			2022 and beyond			Total
Minimum lease payments		$	2,762		$	2,575		$	2,472		$	2,240		$	8,467		$	18,516

Schedule of aggregate annual future minimum lease payments under the capital leases, including interest

        At December 31, 2017, aggregate annual future minimum lease payments under these leases, including interest, are as follows (in thousands):

Years ending December 31:
2018		$	356
2019			134
2020			—
2021			—
2022 and beyond			—
​	​	​	​	​
Total principal obligation		$	490
​	​	​	​	​
​	​	​	​	​

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Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737

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Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717

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Tabular disclosure of real estate properties and units in those properties that are included in the discussion of the nature of an entity's operations.

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