Fair value (Tables)

12 Months Ended

Jul. 31, 2015

Assets and Liabilities Carried at Fair Value Measured on Recurring Basis

The following table provides the assets and liabilities carried at fair value measured on a recurring basis at July 31, 2015 and 2014:

	Fair Value Measurements at July 31, 2015
(in millions)	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents	$	123.8	$	123.8	$	—	$	—
Plan assets for deferred compensation		4.3		4.3		—		—
Total assets at fair value	$	128.1	$	128.1	$	—	$	—
Liabilities
Contingent consideration	$	2.0	$	—	$	—	$	2.0
Foreign currency forward contracts		0.5		—		0.5		—
Total liabilities at fair value	$	2.5	$	—	$	0.5	$	2.0

	Fair Value Measurements at July 31, 2014
(in millions)	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents	$	114.5	$	114.5	$	—	$	—
Plan assets for deferred compensation		3.6		3.6		—		—
Total assets at fair value	$	118.1	$	118.1	$	—	$	—
Liabilities
Contingent consideration	$	2.1	$	—	$	—	$	2.1
Total liabilities at fair value	$	2.1	$	—	$	—	$	2.1

Reconciliations of Changes in Fair Value of Contingent Consideration

The following are reconciliations of the changes in the fair value of contingent consideration in fiscal years 2015 and 2014:

	For the Year ended July 31,
(in millions)	2015			2014
Beginning Balance	$	2.1		$	—
Acquisition—PocketSonics		—			1.9
Change in fair value		(0.1	)		0.2
Payments		—			—
Ending Balance	$	2.0		$	2.1