Depreciation and amortization expense related to property and equipment was $4.5 million and $6.1 million for the years ended March 31, 2012 and 2011, respectively, including amortization of equipment under capital lease of $1.2 million in each year. Accumulated amortization of equipment under capital lease was $3.5 million and $2.4 million at March 31, 2012 and 2011, respectively. Unamortized capitalized software costs, net of accumulated depreciation, was $0.8 million and $0.9 million as of March 31, 2012 and 2011, respectively.
5. Programming Costs
Programming costs consist of the following (in thousands):
The acquired programming costs balance at March 31, 2012 reflects all delivered episodes available for broadcast. There are additional episodes contractually committed under the license agreements that will be delivered in future periods. Amortization expense related to acquired programming costs for the years ended March 31, 2012 and 2011 was $33.0 and $12.2 million, respectively, which includes impairment costs of $13.8 million and $1.3 million for the years ended March 31, 2012 and 2011, respectively.
The in-house programming costs balance consists of all capitalized costs for episodes in production or completed but not aired as of March 31, 2012 and 2011.
6. Amortizable Intangible Assets
Amortizable intangible assets consist primarily of customer relationships and trademarks. The composition of the Company's amortizable intangible assets and the associated accumulated amortization (in thousands) is as follows:
The aggregate amount of amortization expense associated with the Company's intangible assets for the years ending March 31, 2012 and 2011 was approximately $7.1 and $9.3 million, respectively. The estimated aggregate amortization expense for each of the years ending March 31, 2013 through 2017 is approximately $7.1 million, $7.0 million, $6.8 million, $6.7 million, and $5.7 million, respectively.
7. Accounts Payable and Other Accrued Liabilities
Accounts payable and other accrued liabilities consist of the following (in thousands):
Commitments represent future minimum payments as required by contracted license agreements, relating to the purchase of programming. Future payments under these obligations are based on contractual due dates. The amounts include imputed interest payments associated with the obligations on delivered episodes.
8. Long-Term Obligations (continued)
Future minimum lease payments under capital and noncancelable operating leases at March 31, 2012, are as follows (in thousands):
The Company leases office premises and equipment. Certain of the Company's operating leases have renewal options upon expiration of current terms. The Company's primary facilities are located in Hollywood, California, Tulsa, Oklahoma, and New York, New York. Rent expense recorded to general and administrative expense was $3.2 million for the years ended March 31, 2012 and 2011. This excludes rent of $0.5 million each year for studio production facilities, which is recorded as in-house production expense.