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Real Estate Charges

12 Months Ended

Dec. 31, 2018

Restructuring and Related Activities [Abstract]

Since 2010, we have sub-leased over one million square feet of office space. The activity in the liability account relating to our global space consolidation initiatives for the following periods is:



	Year Ended December 31,
	2018			2017
	(in thousands)
Balance as of January 1,	$	113,635		$	112,932
Expense incurred	7,122			28,507
Deferred rent	—			7,083
Payments made (net)	(39,345		)	(39,122		)
Interest accretion	4,412			4,235
Balance as of end of period	$	85,824		$	113,635