d) Stock-based Compensation Expense
The following table summarizes the stock-based compensation expense recorded for all plans within selling, general and administrative expense on the Consolidated Statements of Operations:
For the three months ended For the year ended December 31, December 31, 2012 2011 2012 2011----------------------------------------------------------------------------Stock option plans - non-cash expense 3.141 1,663 6,250 3,059----------------------------------------------------------------------------SARs and share unit plans - cash expense 970 159 3,303 1,595SARs and share unit plans - non- cash expense 1,314 1,340 2,705 3,025----------------------------------------------------------------------------Total expense - SARs and share unit plans 2,284 1,499 6,008 4,620----------------------------------------------------------------------------Total stock-based compensation expense 5,425 3,162 12,258 7,679--------------------------------------------------------------------------------------------------------------------------------------------------------
e) Incentive Plan Liabilities
As at December 31, 2012, the total liability related to the Corporation's incentive plans was $27.0 million, with $22.8 million classified as current and $4.2 million classified as non-current (December 31, 2011 total incentive plan liabilities of $19.8 million, with $14.4 million classified as current and $5.5 million classified as non-current). The current liability associated with the Corporation's incentive plans is included in Accounts payable and accrued liabilities in the balance sheet. Non-current liability is recorded in Other liabilities in the balance sheet.
NOTE 10. INCOME TAX
Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of Newalta's deferred income tax assets and liabilities are as follows:
Canadian Tax Jurisdiction:
---------------------------------------------------------------------------- December 31, 2012 December 31, 2011----------------------------------------------------------------------------Deferred income tax liabilities: Property, plant and equipment 117,716 110,260 Goodwill and intangible assets 18,652 17,869---------------------------------------------------------------------------- 136,368 128,129-------------------------------------------------------------------------------------------------------------------------------------------------------- Deferred income tax assets: Non-capital loss carry forwards 30,921 34,251 Decommissioning liabilities 20,303 19,684 Deferred financing and equity issuance costs 522 165 Deferred revenue 1,670 1,043 Deferred expense 4,857 4,100 Tax credit relating to components of other comprehensive income 223 198 Other 353 299---------------------------------------------------------------------------- 58,849 59,740----------------------------------------------------------------------------Net deferred income tax liability 77,519 68,389--------------------------------------------------------------------------------------------------------------------------------------------------------U.S. Tax Jurisdiction:---------------------------------------------------------------------------- December 31, 2012 December 31, 2011----------------------------------------------------------------------------Deferred income tax liabilities: Property, plant and equipment 3,942 ----------------------------------------------------------------------------- 3,942 ---------------------------------------------------------------------------------------------------------------------------------------------------------Deferred income tax assets: Non-capital loss carry forwards 6,180 1,527 Property, plant and eqiupment - 1,824 Other 636 345---------------------------------------------------------------------------- 6,816 3,696----------------------------------------------------------------------------Net deferred income tax asset 2,874 3,696--------------------------------------------------------------------------------------------------------------------------------------------------------



