Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Financial Covenants Include Required Specified Ratios (Detail)

v3.8.0.1
Long-Term Debt - Financial Covenants Include Required Specified Ratios (Detail)
Dec. 31, 2017
Line Of Credit Facility [Line Items]  
Minimum Consolidated Liquidity Ratio 113.00%
Minimum Consolidated Fixed Charge Coverage Ratio 165.00%
Maximum Consolidated Total Lease Adjusted Leverage Ratio 472.00%
Required Ratio [Member]  
Line Of Credit Facility [Line Items]  
Minimum Consolidated Liquidity Ratio 105.00%
Minimum Consolidated Fixed Charge Coverage Ratio 120.00%
Maximum Consolidated Total Lease Adjusted Leverage Ratio 575.00%