Sale of Receivables (Tables)

3 Months Ended

Jun. 30, 2012

Disclosure of Securitized or Asset-backed Financing Arrangement Assets and Other Financial Assets Managed Together [Abstract]

Summary of the Company’s Accounts Receivable Securitization Information

The following table summarizes the Company’s accounts receivable securitization information as of the dates shown:

	June 30,				March 31,
	2012		2011		2012
Receivables outstanding in facility	$	96,280	$	82,912	$	182,856
Beneficial interest	$	35,368	$	13,972	$	25,864
Servicing liability	$	9	$	—	$	45
Cash proceeds for the three months ended June 30:
Cash purchase price	$	109,475	$	99,977
Deferred purchase price	63,909		37,494
Service fees	156		85
Total	$	173,540	$	137,556