Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2014

Payables and Accruals [Abstract]

Summary of Accrued Expenses

Accrued expenses as of December 31, 2014 and 2013 are as follows:

	December 31,
	2014		2013
Payroll, benefits and related taxes, excluding severance benefits	$	18,654	$	19,869
Withholding tax levied on intercompany interest income		27,497		23,872
Interest on senior notes		7,040		6,749
Settlement obligations		8,976		6,460
Outside service fees		10,640		1,462
Others		8,253		7,082
Accrued expenses	$	81,060	$	65,494