Real Estate Charges (Tables)

3 Months Ended

Mar. 31, 2014

Real Estate Charges [Abstract]

Real estate liability account activity related to office space consolidation initiatives

The activity in the liability account relating to our 2010 and 2012 office space consolidation initiatives for the following periods is as follows:

	Three Months Ended March 31, 2014			Twelve Months  Ended December 31,  2013
	(in thousands)
Balance as of beginning of period	$	199,527		$	238,784
(Credit) expense incurred		(1,496	)		18,371
Deferred rent		—			326
Payments made		(12,208	)		(62,627	)
Interest accretion		1,252			4,673
Balance as of end of period	$	187,075		$	199,527