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Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2012
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | 5. Property, Plant and Equipment As a result of the 2012 Change in Control Transaction, a purchase accounting fair value increase adjustment of $21.3 million was recorded and allocated primarily to our corporate headquarters building and related building improvements as the other assets carrying values approximated their fair values. Accumulated depreciation for all assets was reduced to zero on April 30, 2012, as a result of purchase accounting adjustments. See Note 2, “Change in Control Transactions.” Property, plant and equipment consisted of the following:
(in millions) |  | TransUnion Holding and TransUnion Corp. Successor December 31, 2012 |  |  |  |  | TransUnion Corp. Predecessor December 31, 2011 |
Purchased software |  | $ | 26.2 |  |  |  |  | $ | 144.5 |
Computer equipment and furniture |  |  | 75.5 |  |  |  |  |  | 242.5 |
Building and building improvements |  |  | 42.7 |  |  |  |  |  | 61.1 |
Land |  |  | 3.2 |  |  |  |  |  | 3.2 |
Total cost of property, plant and equipment |  |  | 147.6 |  |  |  |  |  | 451.3 |
Less: accumulated depreciation |  |  | (26.4 | ) |  |  |  |  | (342.3 | )
Total property, plant and equipment, net of accumulated depreciation |  | $ | 121.2 |  |  |  |  | $ | 109.0 |
For TransUnion Holding, depreciation expense from inception through December 31, 2012, including amortization of assets recorded under capital leases, was $26.7 million. For TransUnion Corp. Successor, depreciation expense for the eight months ended December 31, 2012 was $26.7 million. For TransUnion Corp. Predecessor, depreciation expense for the four months ended April 30, 2012, and the years ended December 31, 2011 and 2010 was $12.4 million, $39.3 million and $39.6 million, respectively.

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- Definition The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13-14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
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