Stockholders' Equity (Tables)

6 Months Ended

Oct. 31, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Activity

A summary of stock option activity for the six months ended October 31, 2013 is as follows:

	Stock Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding, April 30, 2013		1,442		$	8.48
Granted		—		$	—
Exercised		—		$	—			$	—
Forfeited		(36	)	$	9.92
Outstanding, October 31, 2013		1,406		$	8.54		5.0	$	1,251
Exercisable, October 31, 2013		1,053		$	10.04		3.6	$	604

Summary of Restricted Stock, Restricted Stock Unit and Performance Stock Unit Activity

A summary of restricted stock, restricted stock unit and performance stock unit activity for the six months ended October 31, 2013 is as follows:

	Restricted Stock, Restricted Stock Units, and Performance Stock Units (1)			Weighted Average Grant Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding, April 30, 2013		1,088		$	5.28
Granted		539		$	4.27
Class A Common Stock Vested		(318	)	$	4.86
Forfeited		(18	)	$	4.54
Outstanding, October 31, 2013		1,291		$	4.97		2.2	$	1,253

(1) Performance stock units are included at the 100% attainment level. Attainment of maximum annual returns on net assets could result in the issuance of an additional 354 shares of Class A common stock.

Accumulated Other Comprehensive Income (Loss)

The changes in the balances of each component of accumulated other comprehensive loss, which is included as a component of our stockholders’ equity, are as follows:

	Marketable Securities		Commodity Hedges
Beginning balance, April 30, 2013	$	27	$	(619	)
Other comprehensive income (loss) before reclassifications		18		(568	)
Amounts reclassified from accumulated other comprehensive income (loss)		—		345
Net current-period other comprehensive income (loss)		18		(223	)
Ending balance, October 31, 2013	$	45	$	(842	)

Reclassification out of Accumulated Other Comprehensive Loss

A summary of reclassifications out of accumulated other comprehensive loss for the three and six months ended October 31, 2013 and 2012 is as follows:

	Three Months Ended October 31,
	2013			2012
Details about Accumulated Other Comprehensive Loss Components	Amount Reclassified Out of Accumulated Other Comprehensive Loss						Affected Line Item in the Consolidated Statements of Operations
Loss on derivative instruments:
Interest rate contracts	$	—		$	(3,625	)	Loss on derivative instruments
Commodity hedges		(181	)		(321	)	Loss from equity method investments
		(181	)		(3,946	)	Loss from continuing operations before income taxes and discontinued operations
		—			—		Provision for income taxes
	$	(181	)	$	(3,946	)	Loss from continuing operations

	Six Months Ended October 31,
	2013			2012
Details about Accumulated Other Comprehensive Loss Components	Amount Reclassified Out of Accumulated Other						Affected Line Item in the Consolidated Statements of Operations
Loss on derivative instruments:
Interest rate contracts	$	—		$	(3,625	)	Loss on derivative instruments
Commodity hedges		(345	)		(365	)	Loss from equity method investments
		(345	)		(3,990	)	Loss from continuing operations before income taxes and discontinued operations
		—			—		Provision for income taxes
	$	(345	)	$	(3,990	)	Loss from continuing operations