Annual report pursuant to Section 13 and 15(d)

Commitments And Contingencies - Future Minimum Lease Payments Under Noncancellable Leases (Detail)

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Commitments And Contingencies - Future Minimum Lease Payments Under Noncancellable Leases (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Capital Lease Obligations And Operating Lease [Line Items]  
2013, Capital Leases $ 10
2014, Capital Leases 0
2015, Capital Leases 0
2016, Capital Leases 0
2017, Capital Leases 0
Thereafter, Capital Leases 0
Total, Capital Leases 10
2013, Operating Leases 109,608
2014, Operating Leases 100,654
2015, Operating Leases 93,697
2016, Operating Leases 83,613
2017, Operating Leases 68,432
Thereafter, Operating leases 345,039
Total, Operating leases $ 801,043