Fair Value Measurements (Tables)

12 Months Ended

Jun. 30, 2012

Fair Value Measurements [Abstract]

Schedule Of Assets Measured At Fair Value On A Recurring Basis

The following table presents the Company's assets measured at fair value on a recurring basis at June 30, 2012. Included in the table are available-for-sale securities within corporate investments of $117.3 million and funds held for clients of $17,976.1 million. Refer to Note 5 for additional disclosure in relation to corporate investments and funds held for clients.

		Level 1		Level 2		Level 3		Total
U.S Treasury and direct obligations of
U.S. government agencies	$	-	$	6,674.6	$	-	$	6,674.6
Corporate bonds		-		7,368.0		-		7,368.0
Canadian provincial bonds		-		655.9		-		655.9
Asset-backed securities		-		548.4		-		548.4
Municipal bonds		-		552.9		-		552.9
Canadian government obligations and
Canadian government agency obligations		-		1,017.0		-		1,017.0
Other securities		20.6		1,256.0		-		1,276.6
Total available-for-sale securities	$	20.6	$	18,072.8	$	-	$	18,093.4

The following table presents the Company's assets measured at fair value on a recurring basis at June 30, 2011. Included in the table are available-for-sale securities within corporate investments of $134.3 million and funds held for clients of $16,793.2 million.

		Level 1		Level 2		Level 3		Total
U.S Treasury and direct obligations of
U.S. government agencies	$	-	$	6,759.1	$	-	$	6,759.1
Corporate bonds		-		6,126.6		-		6,126.6
Canadian provincial bonds		-		494.3		-		494.3
Asset-backed securities		-		447.8		-		447.8
Municipal bonds		-		516.2		-		516.2
Canadian government obligations and
Canadian government agency obligations		-		1,101.5		-		1,101.5
Other securities		20.1		1,461.9		-		1,482.0
Total available-for-sale securities	$	20.1	$	16,907.4	$	-	$	16,927.5