0001001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 1002003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003004 - Statement - Condensed Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 1004005 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 1405401 - Statement - Condensed Consolidated Statements of Cash Flows (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1006006 - Statement - Condensed Consolidated Statements of Stockholders’ Equity link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - Nature of operations link:presentationLink link:calculationLink link:definitionLink 2102102 - Disclosure - Summary of significant accounting policies link:presentationLink link:calculationLink link:definitionLink 2203201 - Disclosure - Summary of significant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2404402 - Disclosure - Summary of significant accounting policies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 2105103 - Disclosure - Cash, cash equivalents, and restricted cash link:presentationLink link:calculationLink link:definitionLink 2306301 - Disclosure - Cash, cash equivalents, and restricted cash (Tables) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - Cash, cash equivalents, and restricted cash - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 2408404 - Disclosure - Cash, cash equivalents, and restricted cash - Schedule of Cash, Cash Equivalents, and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 2109104 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 2410405 - Disclosure - Leases - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 2111105 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 2312302 - Disclosure - Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 2413406 - Disclosure - Equity - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 2414407 - Disclosure - Equity - Summary of Stock-based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2415408 - Disclosure - Equity - Schedule of Weighted Average Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 2416409 - Disclosure - Equity - Schedule of Stock Options Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2417410 - Disclosure - Equity - Summary of Nonvested Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2118106 - Disclosure - Earnings (loss) per share link:presentationLink link:calculationLink link:definitionLink 2319303 - Disclosure - Earnings (loss) per share (Tables) link:presentationLink link:calculationLink link:definitionLink 2420411 - Disclosure - Earnings (loss) per share - Schedule of Potentially Dilutive Shares From Diluted Net Loss Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 1107107 - Statement - Sale of Aquinox Canada link:presentationLink link:calculationLink link:definitionLink 2421412 - Disclosure - Sale of Aquinox Canada (Details) link:presentationLink link:calculationLink link:definitionLink