Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001337553 (http://www.sec.gov/CIK)

Income Tax Disclosure [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Income Tax Disclosure [Abstract]
Components of Provision for Income Taxes	The provision for income taxes is based on net loss before income taxes as follows:   DECEMBER 31, (in thousands) 2016   2015   2014 Net loss before income taxes:           United States $ (88,123 )   $ (59,211 )   $ (48,133 ) Other (10,743 )   (15,013 )   — Net loss before income taxes $ (98,866 )   $ (74,224 )   $ (48,133 )             The components of the provision for income taxes are as follows:       DECEMBER 31, (dollars in thousands) 2016   2015   2014 Provision for income taxes:           Current:           United States $ 193   $ 139   $ — Other —   —   — Total $ 193   $ 139   $ — Deferred:           United States $ —   $ —   $ — Other —   —   — Total —   —   — Provision for income taxes $ 193   $ 139   $ — Effective tax rate (0.19 )%   (0.19 )%   — %
Summary of Significant Components of Company's Net Deferred Income Tax Assets	Significant components of the Company’s net deferred income tax assets as of December 31, 2016 and 2015 consist of the following:   DECEMBER 31, (in thousands) 2016   2015 Net deferred tax assets:       Net operating loss carry-forwards $ 39,188   $ 6,335 Share based compensation 11,845   7,231 U.S. tax credit carry-forwards 4,566   3,823 Other assets 1,998   1,488 Other liabilities (860 )   (696 ) Valuation allowance (56,737 )   (18,181 ) Total net deferred income taxes $ —   $ —
Reconciliation of U.S. Statutory Rate and Effective Tax Rate	A reconciliation of the statutory tax rates and the effective tax rates for the years ended December 31, 2016, 2015 and 2014 is as follows:   DECEMBER 31,   2016   2015   2014 U.S. federal tax rate 35.00  %   35.00  %   35.00  % State income taxes, net of federal benefit 5.34  %   (0.90 )%   6.13  % Taxable gain resulting from IP Assignment —  %   (75.31 )%   —  % Non-taxable foreign loss (2.69 )%   (6.98 )%   —  % Tax deferral from IP Assignment (0.19 )%   3.56  %   —  % Other (1.45 )%   0.02  %   (0.04 )% Valuation allowance (36.20 )%   44.42  %   (41.09 )% Effective tax rate (0.19 )%   (0.19 )%   —  %