Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Credit Facility - Summary of Required Covenant Included in Loan Agreements (Detail) - Covenants Threshold [Member]
Dec. 31, 2016
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: 4