The Corporation has certain assets and liabilities that are required to be measured and disclosed at fair value in accordance with GAAP. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. When an asset or liability is required to be measured at fair value, an entity is required to maximize the use of observable inputs and minimize the use of unobservable inputs using a fair value hierarchy as follows: 

Level 1: Observable inputs such as quoted prices for identical assets or liabilities in active markets.

Level 2: Observable inputs other than quoted prices that are directly or indirectly observable for the asset or liability, including quoted prices for similar assets or liabilities in active markets; quoted prices for similar or identical assets or liabilities in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable. 

Level 3: Unobservable inputs that reflect the reporting entity’s own assumptions. Measurement is based on prices or valuation models requiring inputs that are both significant to the fair value measurement and supported by little or no market activity.

The carrying amount of cash and cash equivalents, restricted cash, accounts receivable, accounts payable, accrued liabilities, borrowings under the Revolving Credit Facility and borrowings under the Senior Loan Facility are a reasonable estimate of their fair values due to their short duration.    

The Corporation's non-financial assets include goodwill, property and equipment, and other intangible assets, which are classified as Level 3 assets. These assets are measured at fair value on a nonrecurring basis as part of the Corporation's impairment assessments and as circumstances require. Goodwill is subjected to an annual review for impairment or more frequently as required.