Accrued Service Contract Liability and Deferred Revenue (Tables)

6 Months Ended

Jun. 30, 2013

Deferred Revenue Disclosure [Abstract]

Schedule of Limited Warranty Service Contract Liabilities

The following table reflects activity in the warranty accrual for the periods indicated:

	Three Months Ended June 30,						Six months ended June 30,
	2013			2012			2013			2012
	(In thousands)
Warranty Accrual Activity
Balance, Beginning of Period	$	24,908		$	27,436		$	24,030		$	24,004
Warranty Expense	6,060			3,992			14,616			11,433
Warranty Claims Paid	(7,751		)	(5,650		)	(15,429		)	(9,659		)
Balance, End of Period	$	23,217		$	25,778		$	23,217		$	25,778

Deferred Revenue, by Arrangement, Disclosure

The following table sets forth information regarding the changes in deferred income and cost:

	Three Months Ended June 30, 2013									Six months ended June 30, 2013
	Deferred Revenue			Deferred Expense			Deferred Income			Deferred Revenue			Deferred Expense			Deferred Income
	(In thousands)
Deferred Balance, Beginning of Period	$	9,011		$	(1,713	)	$	7,298		$	2,332		$	(390	)	$	1,942
Gross Revenue Deferred	6,167			—			6,167			13,204			—			13,204
Gross Cost Deferred	—			(1,236		)	(1,236		)	—			(2,612		)	(2,612		)
Revenue Recognized	(1,348		)	—			(1,348		)	(1,706		)	—			(1,706		)
Cost Recognized	—			256			256			—			309			309
Deferred Balance, End of Period	$	13,830		$	(2,693	)	$	11,137		$	13,830		$	(2,693	)	$	11,137