NOTE 15. OTHER LONG-TERM LIABILITIES

Other long-term liabilities consisted of the following (in thousands):


	June 30,
	2012		2011
Deferred rent, net of current portion		28,113		25,983
Reserve for unrecognized tax benefits		6,245		5,095
Deferred revenue		5,533		119
Deferred acquisition and contingent consideration		4,760		526
Accrued post-retirement obligations		4,143		3,447
Interest rate swap agreements		2,196		—
Other		961		2,696
Total other long-term liabilities	$	51,951	$	37,866

Deferred rent liabilities result from recording rent expense and incentives for tenant improvements on a straight-line basis over the life of the respective lease.

The deferred acquisition and contingent consideration of $4.8 million at June 30, 2012 is related to acquisitions made by the Company during the years ended June 30, 2012 and 2011 and consists of $3.0 million of contingent consideration and $1.8 million related to amounts retained by the Company to secure the seller's indemnification obligations in connection with two U.K. acquisitions.

Accrued post-retirement obligations include projected liabilities for benefits the Company is obligated to provide under a long-term care, a group health, and an executive life insurance plan, each of which is unfunded. Plan benefits are provided to certain current and former executives, their dependents and other eligible employees, as defined. The post-retirement obligations also include accrued benefits under supplemental retirement benefit plans covering certain executives. The costs under these plans were $0.4 million during the year ended June 30, 2012.

On April 15, 2012, the Company entered into two floating-to-fixed interest rate swap agreements related to a portion of the Company's floating rate indebtedness (see Note 13). The fair value of the swap agreements as of June 30, 2012 is a liability of $2.2 million.