Basis of Presentation - Additional Information (Detail) - Restatement Adjustment $ in Millions	3 Months Ended
	Sep. 30, 2016 USD ($)
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Immaterial error correction, description	We have corrected this prior period immaterial error in the Condensed Consolidated Statement of Cash Flows in this Quarterly Report on Form 10-Q. The correction impacted the financial statement line items Cash flows provided by (used in) operating activities and the Effect of exchange rate changes on cash in the Condensed Consolidated Statement of Cash Flows for the three months ended September 30, 2015 and resulted in a decrease in the Net change in derivative assets and liabilities and Cash flows provided by (used in) operating activities in the amount of $40.1 million with an equal and offsetting decrease to the financial statement line item Effect of exchange rate changes on cash.
Immaterial error correction amount	$ 40.1