Fair Value Disclosures (Tables)

6 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Schedule of assets and liabilities recorded at fair value on a recurring basis

	Fair Value Measurement Using
Description	Level 1		Level 2			Level 3		Fair Value
Interest rate swap agreements:
September 30, 2013:
Effective June 13, 2012	$	—	$	135,245		$	—	$	135,245
Effective August 13, 2012	$	—	$	(56,454	)	$	—	$	(56,454	)
March 31, 2013	$	—	$	(504,852	)	$	—	$	(504,852	)

Schedule of financial instruments not measured at fair value

	Fair Value Measurement Using
Description	Level 1		Level 2		Level 3		Fair Value
Finance receivables:
September 30, 2013	$	—	$	—	$	260,494,000	$	260,494,000
March 31, 2013	$	—	$	—	$	249,826,000	$	249,826,000
Line of credit:
September 30, 2013	$	—	$	131,000,000	$	—	$	131,000,000
March 31, 2013	$	—	$	125,500,000	$	—	$	125,500,000