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Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and contingencies

Summary of Rental expense under operating leases

        Rent expense related to our operating leases for the years ended December 31, 2014 and 2013, was as follows (in thousands):

		For the Years Ended December 31,
		2014			2013
Rent expense		$	1,867		$	809
Less: income from subleases			(11	)		—
​	​	​	​	​	​	​	​
Net rent expense		$	1,856		$	809
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

Schedule of Future Lease Obligations under Operating Leases

        Future lease obligations under our operating leases as of December 31, 2014, were as follows (in thousands):

Year		Amount
2015		$	1,818
2016			1,632
2017			892
2018			183
2019			4
Thereafter			—
​	​	​	​	​
Total lease commitments			4,529
Less: income from subleases			(428	)
​	​	​	​	​
Net lease commitments		$	4,101
​	​	​	​	​
​	​	​	​	​

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- Definition

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=6453985&loc=d3e41502-112717

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- Definition

Tabular disclosure of rental expense from operating leases for each period for which an income statement is presented with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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