Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash	$ 319,737	$ 239,758
Accounts receivable, including related party amounts of $881 and $821 as of June 30, 2018 and December 31, 2017, respectively	944	2,626
Prepaid expenses and other current assets, including related party amounts of $559 and $1,871 as of June 30, 2018 and December 31, 2017, respectively	9,868	6,001
Total current assets	330,549	248,385
Property and equipment, net	18,395	18,857
Intangible assets, net	317	344
Restricted cash	3,165	3,154
Other non-current assets	704	606
Total assets	353,130	271,346
Current liabilities:
Accounts payable	4,479	1,639
Accrued expenses, including related party amounts of $78 and $0 as of June 30, 2018 and December 31, 2017, respectively	12,702	11,361
Accrued tax liabilities	47	347
Deferred rent	1,027	1,027
Other current liabilities	226	137
Total current liabilities	18,481	14,511
Deferred revenue non-current, including related party amounts of $0 and $91 as of June 30, 2018 and December 31, 2017, respectively	57,832	56,928
Deferred rent non-current	11,380	11,761
Other non-current liabilities	283	314
Total liabilities	87,976	83,514
Commitments and contingencies, see Note 5
Shareholders’ equity:
Common shares, CHF 0.03 par value, 47,520,292 and 41,092,969 shares authorized at June 30, 2018 and December 31, 2017, respectively, 47,481,196 and 41,037,121 shares issued at June 30, 2018 and December 31, 2017, respectively, 47,071,835 and 40,592,248 shares outstanding at June 30, 2018 and December 31, 2017, respectively, 19,699,821 and 16,419,632 shares in conditional capital at June 30, 2018 and December 31, 2017, respectively.	1,435	1,240
Treasury shares, at cost, 409,361 and 444,873 shares at June 30, 2018 and December 31, 2017, respectively	(50)	0
Additional paid-in capital	457,032	312,018
Accumulated deficit	(193,268)	(125,440)
Accumulated other comprehensive income	5	14
Total shareholders' equity	265,154	187,832
Total liabilities and shareholders’ equity	$ 353,130	$ 271,346

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682