Accrued Expenses

9 Months Ended

Sep. 30, 2013

Payables and Accruals [Abstract]

Accrued Expenses

12.    Accrued Expenses

Accrued expenses consist of the following:

	September 30, 2013		December 31, 2012
	(In thousands)
Payroll and benefits	$	79,570	$	56,651
Deferred revenue and customer advances	52,968		52,773
Accrued interest	44,275		19,048
Accrued royalties (Note 17)	43,324		33,324
Acquisition payable (Note 3)	19,459		—
Accrued severance plan obligations (Note 14)	10,411		9,516
Income taxes payable	8,549		8,341
Other accrued expenses	32,287		33,311
Total accrued expenses	$	290,843	$	212,964

Accrued royalties relate to our estimate of royalties due as a result of our pending patent license arbitration (Note 17).