Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015
Current assets:
Cash and cash equivalents	$ 68.5	$ 64.1
Marketable investment securities	90.5	80.7
Prepaid expenses	18.4	12.5
Inventory	38.3	25.1
Trade accounts receivable, less allowance for doubtful accounts of $6.8 in 2016 and $7.6 in 2015	91.7	85.8
Deferred taxes		13.5
Prepaid taxes	3.8
Other receivables	3.3	1.9
Total current assets	314.5	283.6
Property, plant and equipment, net	58.3	67.2
Long-term marketable investment securities	79.9	40.6
Intangibles, net	227.5	192.6
Goodwill	195.3	177.2
Other assets	5.0	5.0
Total assets	880.5	766.2
Current liabilities:
Accounts payable	21.1	21.1
Accrued liabilities	49.5	46.1
Deferred revenue	1.7	1.5
Total current liabilities	72.3	68.7
Unrecognized tax benefits	24.0	26.4
Other long-term liabilities	18.2	8.8
Long-term deferred taxes	17.9	0.2
Total liabilities	132.4	104.1
Commitments and contingencies
Stockholders' equity:
Common stock, 69.1 and 68.9 shares outstanding at June 30, 2016 and 2015 respectively	0.7	0.7
Additional paid-in capital	830.1	745.4
Accumulated other comprehensive loss	(9.5)	(7.0)
Accumulated deficit	(73.2)	(77.0)
Total stockholders' equity	748.1	662.1
Total liabilities and stockholders' equity	$ 880.5	$ 766.2

Prepaid expense excluding prepaid taxes current.

No definition available.

Name:	mygn_PrepaidExpenseExcludingPrepaidTaxesCurrent
Namespace Prefix:	mygn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).