Property and Equipment, net (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and equipment consisted of: 

(Dollar amounts in thousands)	Estimated Useful Lives				December 31, 2012			December 31, 2013
Computers, software and equipment	1	-	5	years	$	1,140,772		$	1,488,106
Furniture and fixtures	7	years			40,557			55,681
Buildings and leasehold improvements	2	-	30	years	214,858			236,255
Land					15,864			28,566
Property and equipment, at cost					1,412,051			1,808,608
Less accumulated depreciation and amortization					(738,274		)	(983,618		)
Work in process					51,208			65,786
Property and equipment, net					$	724,985		$	890,776