Accounts Receivable and Allowances for Doubtful Accounts (Tables)

6 Months Ended

Jun. 30, 2012

Accounts Receivable and Allowances for Doubtful Accounts [Abstract]

Current and long-term accounts receivable balances

	As of
	June 30, 2012		December 31, 2011
	(In thousands)
Accounts receivable	$	75,135	$	99,686
Installment contract receivables, short-term		48,108		37,086
Long-term receivables		7,750		11,371
Total receivables	$	130,933	$	148,143