Quarterly report pursuant to Section 13 or 15(d)

Recent Transactions - Pending Transactions -Additional Information (Detail)

v3.19.2
Recent Transactions - Pending Transactions -Additional Information (Detail)
$ in Millions
Mar. 01, 2017
USD ($)
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]  
Business combination, liabilities arising from contingencies, amount recognized $ 0.5
Term of time brokerage agreement 24 months