Restructuring Expense (Tables)

The activity related to restructuring and other liability for 2003 was as follows:



	Restructuring Expense		Cash Payments			Non-cash Expense			Liability as of December 31, 2003
	(in thousands)
Lease restructuring and other operating lease expense	$	84,726	$	(15,200	)	$	—		$	69,526
Employee severance, benefits and related costs	2,616		(2,616		)	—			—
Leasehold improvements and asset impairments	4,482		—			(4,482		)	—
Total	$	91,824	$	(17,816	)	$	(4,482	)	$	69,526

The activities related to 2003 restructuring liability for 2004 through 2014 were as follows:



	2014			2013			2012			2004-2014
	(in thousands)
Liability, beginning of the period	$	19,115		$	23,328		$	26,313		$	69,526
Cash payments	(17,494		)	(15,255		)	(14,853		)	(196,446		)
Cash received from subleases	12,912			10,670			10,024			88,620
Credit for portion of facility Vertex decided to occupy in 2005	—			—			—			(10,018		)
Restructuring expense	(2,937		)	372			1,844			59,914
Liability, end of the period	$	11,596		$	19,115		$	23,328		$	11,596

The activities related to the Fan Pier relocation restructuring liability for the years ended December 31, 2013 and 2014 were as follows:



	2014			2013
	(in thousands)
Liability, beginning of the period	$	797		$	—
Cash payments	(18,271		)	(401		)
Restructuring expense	50,864			1,198
Liability, end of the period	$	33,390		$	797

The activities related to the Company’s other restructuring liabilities for the years ended December 31, 2013 and 2014 were as follows:



	2014			2013
	(in thousands)
Liability, beginning of the period	$	8,441		$	—
Cash payments	(10,570		)	(22,916		)
Asset impairments and other non-cash expense	—			(7,594		)
Restructuring expense	2,998			38,951
Liability, end of the period	$	869		$	8,441