Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 118,521	$ 307,384
Restricted cash (Notes 10, 12, 13)		7,500
Accounts receivable, net of allowances for doubtful accounts (Note 4)	4,590	3,960
Contingent consideration - current (Notes 10, 13)	36,582	41,255
Income taxes receivable	77	554
Deferred income tax assets - current (Note 11)	191	644
Assets held for sale (Note 12)		300
Prepaid and other assets	1,863	1,442
Total current assets	161,824	363,039
Property, plant and equipment (Note 5)	1,866	2,655
Deferred income tax assets - non-current (Note 11)	177	370
Contingent consideration - non-current (Notes 10, 13)		35,154
Total assets	163,867	401,218
Current liabilities
Accounts payable	2,609	6,121
Accrued liabilities (Note 6)	1,498	2,515
Accrued restructuring charge (Note 9)	130	1,933
Deferred income (Note 12)		456
Total current liabilities	4,237	11,025
Uncertain tax position liabilities (Note 11)	1,846	1,875
Total liabilities	6,083	12,900
Share capital (Note 8)
Authorized 5,000,000 first preference shares without par value, issuable in series
Authorized 500,000,000 common shares without par value, issued and outstanding common shares December 31, 2013 - 51,081,878 shares December 31, 2012 - 51,589,405 shares	466,229	471,712
Additional paid-in capital	95,844	296,024
Accumulated deficit	(507,258)	(482,387)
Accumulated other comprehensive income	102,969	102,969
Total shareholders' equity	157,784	388,318
Total shareholders' equity and liabilities	$ 163,867	$ 401,218