Annual report pursuant to Section 13 and 15(d)

Future Minimum Lease Payments under Noncancelable Operating and Capital Leases Remaining Terms in Excess of One Year (Detail)

v3.8.0.1
Future Minimum Lease Payments under Noncancelable Operating and Capital Leases Remaining Terms in Excess of One Year (Detail) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]    
Future minimum operating lease payments, current $ 253,835  
Future minimum operating lease payments, in two years 233,606  
Future minimum operating lease payments, in three years 215,265  
Future minimum operating lease payments, in four years 197,779  
Future minimum operating lease payments, in five years 171,486  
Future minimum operating lease payments, thereafter 675,567  
Future minimum operating lease payments, total 1,747,538  
Future minimum capital leases payments, current 42,832  
Future minimum capital leases payments, in two years 42,363  
Future minimum capital leases payments, in three years 41,543  
Future minimum capital leases payments, in four years 34,584  
Future minimum capital leases payments, in five years 32,383  
Future minimum capital leases payments, thereafter 182,027  
Future minimum capital leases payments, total 375,732  
Amounts representing interest payments (99,070)  
Present value of future minimum payments 276,662  
Current portion of capital lease obligations (25,511) $ (21,139)
Capital lease obligations, less current portion $ 251,151 $ 234,281