Discontinued Operations - Summary of Operating Results of Discontinued Operations (Parenthetical) (Detail) (PPDS Technology [Member])	0 Months Ended	12 Months Ended
	Dec. 24, 2012	Dec. 31, 2012
PPDS Technology [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Term of Mati's purchase option to acquire QLT's PPDS Technology	90 days	90 days