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LEASES | 12 Months Ended
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Dec. 31, 2012
LEASES [ABSTRACT] |
LEASES | (16) LEASES The Company has various operating leases primarily for equipment, delivery centers and office space, which generally contain renewal options. Rent expense under operating leases was approximately $33.1 million, $30.0 million and $30.2 million for the years ended December 31, 2012, 2011 and 2010, respectively. In 2008, the Company sub-leased one of its delivery centers to a third party for the remaining term of the original lease. The sub-lease began on January 1, 2009 and rental income received over the term of the lease will be recognized on a straight-line basis. Future minimum sub-lease rental receipts are shown in the table below. The future minimum rental payments and receipts required under non-cancelable operating leases as of December 31, 2012 are as follows (amounts in thousands):
|  |  |  |  | Operating Leases |  |  | Sub-Lease Income
2013 |  |  | $ | 23,699 |  | $ | (1,823)
2014 |  |  |  | 20,187 |  |  | (1,823)
2015 |  |  |  | 13,924 |  |  | (2,234)
2016 |  |  |  | 10,659 |  |  | (2,234)
2017 |  |  |  | 6,467 |  |  | (2,234)
Thereafter |  |  |  | 7,621 |  |  | (7,615)
| Total |  |  | $ | 82,557 |  | $ | (17,963)
In addition, the Company records operating lease expense on a straight-line basis over the life of the lease as described in Note 1. The deferred lease liability as of December 31, 2012 and 2011 was $8.6 million and $6.7 million, respectively. Asset Retirement Obligations The Company records asset retirement obligations (“ARO”) for its delivery center leases. Capitalized costs related to ARO's are included in Other long-term assets in the accompanying Consolidated Balance Sheets while the ARO liability is included in Other long-term liabilities in the accompanying Consolidated Balance Sheets. Following is a summary of the amounts recorded (amounts in thousands):
|  |  | Balance at December 31, 2011 |  |  | Additions and Modifications |  |  | Accretion |  |  | Settlements |  |  | Balance at December 31, 2012
ARO liability total |  | $ | 2,082 |  | $ | - |  | $ | 51 |  | $ | (72) |  | $ | 2,061
|  |  | Balance at December 31, 2010 |  |  | Additions and Modifications |  |  | Accretion |  |  | Settlements |  |  | Balance at December 31, 2011
ARO liability total |  | $ | 2,300 |  | $ | 287 |  | $ | 23 |  | $ | (528) |  | $ | 2,082
Increases to ARO result from a new lease agreement or modifications on an ARO from a preexisting lease agreement. Modifications to ARO liabilities and accumulated accretion occur when lease agreements are amended or when assumptions change, such as the rate of inflation. Modifications are accounted for prospectively as changes in estimates. Settlements occur when leased premises are vacated and the actual cost of restoration is paid. Differences between the actual costs of restoration and the balance recorded as ARO liabilities are recognized as gains or losses in the accompanying Consolidated Statements of Comprehensive Income.

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- Definition The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 1,3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6452660&loc=d3e36991-112694 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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