Accrued Expenses

12 Months Ended

Dec. 31, 2014

Payables and Accruals [Abstract]

Accrued Expenses

13. Accrued Expenses

Accrued expenses consist of the following:

	December 31,
	2014		2013
	(In thousands)
Payroll and benefits	$	77,635	$	75,909
Deferred revenue and customer advances	56,829		44,764
Accrued settlement costs (Note 18)	32,414		43,324
Income taxes payable	31,580		17,528
Accrued interest	15,947		21,807
Accrued severance plan obligations (Note 15)	13,226		11,197
Acquisition payable (Note 3)	—		17,897
Other accrued expenses	31,366		31,826
Total accrued expenses	$	258,997	$	264,252

Accrued settlement costs relate to amounts due as a result of a patent license dispute (Note 18).