Annual report pursuant to Section 13 and 15(d)

Future Minimum Rental Payments Required under Operating Leases that have Initial or Remaining Non-Cancelable Lease Terms in Excess of One Year (Detail)

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Future Minimum Rental Payments Required under Operating Leases that have Initial or Remaining Non-Cancelable Lease Terms in Excess of One Year (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Leases Future Minimum Payments [Line Items]  
2013 $ 10,586
2014 10,193
2015 9,402
2016 7,057
2017 4,826
Thereafter 30,376
Operating Leases, Future Minimum Payments Due, Total 72,440
Related Parties
 
Leases Future Minimum Payments [Line Items]  
2013 1,319
2014 1,245
2015 1,250
2016 1,202
2017 1,009
Thereafter 4,330
Operating Leases, Future Minimum Payments Due, Total 10,355
Other
 
Leases Future Minimum Payments [Line Items]  
2013 9,267
2014 8,948
2015 8,152
2016 5,855
2017 3,817
Thereafter 26,046
Operating Leases, Future Minimum Payments Due, Total $ 62,085