Summary of Notes Receivable with Modification of Financing Terms (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2013 Contract Customer		Jun. 30, 2012 Contract Customer
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	11		18
Number of contracts	32		82
Domestic
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1	[1]	1
Number of contracts	1	[1]	2
International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	10	[1]	17	[2]
Number of contracts	31	[1]	80	[2]
Customer 1 | Domestic
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1
Number of contracts	1
Financing receivable modification Investment	$ 3.5
Financing term modifications, average term extension	19 months
Customer 1 | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms			1
Number of contracts			1
Financing receivable modification Investment			14.8
Financing term modifications, average term extension			5 months
Customer 2 | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1		1
Number of contracts	20		16
Financing receivable modification Investment	9.0		8.8
Financing term modifications, average term extension	13 months		12 months
Customer 3 | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1		1
Number of contracts	1		14
Financing receivable modification Investment	8.3		8.0
Financing term modifications, average term extension	2 months		14 months
Customer 4 | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1		1
Number of contracts	1		11
Financing receivable modification Investment	4.8		6.4
Financing term modifications, average term extension	8 months		11 months
Customer 5 | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1
Number of contracts	2
Financing receivable modification Investment	2.1
Financing term modifications, average term extension	10 months
Customer Ten | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1
Number of contracts	2
Financing receivable modification Investment	0.6
Financing term modifications, average term extension	12 months
Customer 6 | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1
Number of contracts	1
Financing receivable modification Investment	1.5
Financing term modifications, average term extension	11 months
Customer 7 | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1
Number of contracts	1
Financing receivable modification Investment	1.4
Financing term modifications, average term extension	17 months
Customer Eight [Member] | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1
Number of contracts	1
Financing receivable modification Investment	1.1
Financing term modifications, average term extension	28 months
Customer Nine [Member] | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1
Number of contracts	1
Financing receivable modification Investment	1.0
Financing term modifications, average term extension	8 months
Customer Twelve | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms	1
Number of contracts	1
Financing receivable modification Investment	0.3
Financing term modifications, average term extension	13 months
Other Customers | Domestic
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms			1
Number of contracts			2
Financing receivable modification Investment			0.7
Financing term modifications, average term extension			12 months
Other Customers | International
Financing Receivable, Modifications [Line Items]
Number of customers with modifications to financing terms			13
Number of contracts			38
Financing receivable modification Investment			$ 15.8
Financing term modifications, average term extension			12 months

[1] Detailed modifications included: Ø One domestic customer with one note for $3.5 million for which original terms were extended by 19 months; Ø One international customer for which 20 notes were consolidated into one note aggregating $9.0 million, with an average 13-month extension; Ø One international customer with one note for $8.3 million for which original terms were extended by two months; Ø One international customer with one note for $4.8 million for which original terms were extended by eight months; Ø One international customer for which two notes were consolidated into one note aggregating $2.1 million, with an average 10-month extension; Ø One international customer with one note for $1.5 million for which original terms were extended by 11 months; Ø One international customer with one note for $1.4 million for which original terms were extended by 17 months; Ø One international customer with one note for $1.1 million for which original terms were extended by 28 months; Ø One international customer with one note for $1.0 million for which original terms were extended by eight months; Ø One international customer for which two notes were consolidated into one note aggregating $0.6 million, with an average 12-month extension; and Ø One international customer with one note for $0.3 million for which original terms were extended by 13 months.

[2] Detailed modifications included: Ø One international customer with one note for $14.8 million for which original terms were extended by five months; Ø One international customer in which 16 notes were consolidated into one note aggregating $8.8 million, with an average 12 month extension of terms; Ø One international customer in which 14 notes were consolidated into three notes aggregating $8.0 million, with an average 14 month extension of terms; Ø One international customer in which 11 notes were consolidated into one note aggregating $6.4 million, with an average 11 month extension of terms; Ø The remaining 13 international customers with 38 notes were consolidated into 13 notes aggregating $15.8 million, with an average of 12 month extension of terms; and Ø One domestic customer in which two notes were consolidated into one note aggregating for $0.7 million for which original terms were extended by 12 months.