Accrued Expenses

6 Months Ended

Jun. 30, 2013

Payables and Accruals [Abstract]

Accrued Expenses

11.    Accrued Expenses

Accrued expenses consist of the following:

	June 30, 2013		December 31, 2012
	(In thousands)
Payroll and benefits	$	60,907	$	56,651
Deferred revenue and customer advances	48,637		52,773
Accrued royalties (Note 16)	33,324		33,324
Accrued interest	20,837		19,048
Income taxes payable	10,565		8,341
Accrued severance plan obligations (Note 13)	9,468		9,516
Other accrued expenses	34,107		33,311
Total accrued expenses	$	217,845	$	212,964

Accrued royalties relate to our estimate of royalties due as a result of our pending patent license arbitration (Note 16).