Significant Accounting Policies	9 Months Ended
Significant Accounting Policies	Sep. 30, 2011
Significant Accounting Policies [Abstract]
Significant Accounting Policies	2. Significant Accounting Policies Our significant accounting policies are those that we believe are both important to the portrayal of our financial condition and results of operations. Management believes there have been no material changes to the significant accounting policies discussed in Note 2 of our Annual Report on Form 10-K for the year ended December 31, 2010, filed with the SEC on February 18, 2011, except as set forth below as it relates to the acquisition of triVIN Holdings, Inc., now known as DealerTrack Processing Solutions, Inc.: Revenue Recognition Collateral Management Services Transaction Revenue Our collateral management solution provides paper and electronic-based title services. Customer contracts are principally comprised of two elements: (1) title perfection and (2) title administration. Collateral management services are delivered either manually (for paper-based) or electronically. Paper-based title management services require us to physically hold, store and manually release the title. Electronic title management services require an electronic title and data storage; the release of the title can be accomplished by the lien holder and does not require manual action by us. Deliverables for paper and electronic title management arrangements are separated into more than one unit of accounting when (i) the delivered element(s) have value to the customer on a stand-alone basis, (ii) delivery of the undelivered element(s) is probable and substantially in our control, and (iii) evidence of fair value is available. Based on the above criteria, both paper and electronic-based collateral management service revenue is separated into two units of accounting. We recognize a portion of the paper-based transaction fee upon completion of the lien documentation and for electronic-based transactions upon receipt of the title record. For customers in which we bill the entire transaction fee in advance, a portion of both the paper and electronic-based transaction fee is deferred and recognized over the title administration period, which we estimate to be at 39 months. Amounts allocated to each unit of accounting are based upon the price charged when each element is sold separately. Collateral management services revenue also includes revenue earned from converting a new lender's title portfolio to our collateral management solution and other ancillary services. Amounts earned from converting a new lender's portfolio are recognized over the lender's estimated portfolio loan life which varies depending on the lender. Amounts earned from other ancillary services are recognized on a per transaction basis after services have been rendered. Registration and Titling Services Transaction Revenue Our registration and titling services solution provides various web-based and service-bureau automotive vehicle registration services to customers. Registration and titling services revenue is recognized on a per transaction basis after services have been rendered. Customer Funds Under contractual arrangements, our registration and titling services solution collects funds from its customers and remits such amounts to the various state departments of motor vehicle registries (registries). Customer funds receivable primarily represents transactions processed by our customers for which we have not collected our fees or the fees payable to the various registries. In addition, payments made to the various registries in advance of receipt from the customer, are recorded as customer funds receivable. Customer funds payable primarily includes transactions processed by our customers for which we have not remitted the fees to the various registries. Customer funds are maintained in separate bank accounts and are segregated from our operating cash.