Subsequent Events

12 Months Ended

Dec. 31, 2011

Subsequent Events [Abstract]

Subsequent Events

16. Subsequent Events

On January 31, 2012, we increased our investment in Associate Veterinary Clinics (1981) LTD, (“AVC”) by approximately CDN $81 million becoming the sole non-veterinarian shareholder of AVC. AVC is a leading animal healthcare company in Canada, with 44 hospitals in three Canadian provinces, offering services ranging from primary care, to specialty referral services and 24-hour emergency care.

On January 25, 2012, we amended our senior credit facility to replenish the aggregate amount of New Term Loan Commitments available under the Credit Agreement, to a maximum of $100 million, after giving effect to the January 24, 2012 funding of $50 million of New Term Loan Commitments in connection with our increased investment in AVC, detailed above.