Recent Transactions - Pending Transactions -Additional Information (Detail)
$ in Millions
Mar. 01, 2017
|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|
The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef