Quarterly report pursuant to Section 13 or 15(d)

Credit Facilities - Summary of Required Covenant Included in Loan Agreements (Detail)

v3.7.0.1
Credit Facilities - Summary of Required Covenant Included in Loan Agreements (Detail) - Covenants Threshold [Member]
Jun. 30, 2017
USD ($)
Line of Credit Facility [Line Items]  
Minimum Liquidity (defined as available borrowings under the Loan Agreements plus unrestricted cash divided by actual borrowings) of greater than: 5.00%
12 month rolling Net Interest Margin of greater than: $ 0
Maximum Debt to Equity Ratio of less than:(1) 4