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Future Minimum Lease Payments Under Capital Lease Obligations (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
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|---|---|
| Loss Contingencies [Line Items] | |
| Capital leases minimum lease payments, 2014 | $ 5,228 |
| Capital leases minimum lease payments, 2015 | 5,082 |
| Capital leases minimum lease payments, 2016 | 4,580 |
| Capital leases minimum lease payments, 2017 | 4,201 |
| Capital leases minimum lease payments, 2018 | 1,188 |
| Capital leases minimum lease payments, thereafter | |
| Total minimum lease payments | 20,279 |
| Less amount representing executor costs | (266) |
| Net minimum lease payments | 20,013 |
| Less amount representing interest (3.30% at December 31, 2013) | (1,195) |
| Present value of net minimum lease payments | $ 18,818 |