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Accrued Expenses and Other Liabilities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Accrued Expenses and Other Liabilities |  |
Salaries and wages, Accrued Expenses | $ 86,776 | $ 121,087
Salaries and wages, Non-Current Liabilities | 0 | 0
Salaries and wages, Total | 86,776 | 121,087
Deferred compensation, Accrued Expenses | 1,630 | 1,405
Deferred compensation, Non-Current Liabilities | 24,918 | 21,285
Deferred compensation, Total | 26,548 | 22,690
Pension benefits, Accrued Expenses | 3,309 | 3,120
Pension benefits, Non-Current Liabilities | 597,275 | 546,681
Pension benefits, Total | 600,584 | 549,801
Other postretirement benefits, Accrued Expenses | 2,683 | 2,838
Other postretirement benefits, Non-Current Liabilities | 37,916 | 40,154
Other postretirement benefits, Total | 40,599 | 42,992
Insurance obligations, primarily self-insurance, Accrued Expenses | 133,459 | 120,045
Insurance obligations, primarily self-insurance, Non-Current Liabilities | 178,714 | 157,390
Insurance obligations, primarily self-insurance, Total | 312,173 | 277,435
Residual value guarantees, Accrued Expenses | 1,505 | 3,093
Residual value guarantees, Non-Current Liabilities | 130 | 1,125
Residual value guarantees, Total | 1,635 | 4,218
Deferred rent, Accrued Expenses | 9,244 | 4,088
Deferred rent, Non-Current Liabilities | 9,405 | 14,686
Deferred rent, Total | 18,649 | 18,774
Environmental liabilities, Accrued Expenses | 4,201 | 4,368
Environmental liabilities, Non-Current Liabilities | 8,415 | 9,171
Environmental liabilities, Total | 12,616 | 13,539
Asset retirement obligations, Accrued Expenses | 3,642 | 5,702
Asset retirement obligations, Non-Current Liabilities | 17,116 | 12,364
Asset retirement obligations, Total | 20,758 | 18,066
Operating taxes, Accrued Expenses | 91,419 | 81,820
Operating taxes, Non-Current Liabilities | 0 | 0
Operating taxes, Total | 91,419 | 81,820
Income taxes, Accrued Expenses | 8,288 | 4,160
Income taxes, Non-Current Liabilities | 57,590 | 74,147
Income taxes, Total | 65,878 | 78,307
Interest, Accrued Expenses | 35,798 | 30,410
Interest, Non-Current Liabilities | 0 | 0
Interest, Total | 35,798 | 30,410
Deposits, mainly from customers, Accrued Expenses | 51,671 | 50,951
Deposits, mainly from customers, Non-Current Liabilities | 6,236 | 7,544
Deposits, mainly from customers, Total | 57,907 | 58,495
Deferred revenue, Accrued Expenses | 21,557 | 20,698
Deferred revenue, Non-Current Liabilities | 0 | 476
Deferred revenue, Total | 21,557 | 21,174
Acquisition holdbacks, Accrued Expenses | 1,637 | 7,422
Acquisition holdbacks, Non-Current Liabilities | 2,673 | 0
Acquisition holdbacks, Total | 4,310 | 7,422
Other, Accrued Expenses | 48,888 | 46,423
Other, Non-Current Liabilities | 8,544 | 11,564
Other, Total | 57,432 | 57,987
Total Accrued Expenses | 505,707 | 507,630
Total, Non-Current Liabilities | 948,932 | 896,587
Total | $ 1,454,639 | $ 1,404,217

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