Restructuring Charges (Tables)

12 Months Ended

Dec. 31, 2014

Restructuring Plan 2013

Restructuring Charges.

Summary of changes in the liability related to the restructuring plan included in accounts payable and accrued expenses

        Activity and liability balances recorded as part of the 2013 restructuring plan through December 31, 2014 are as follows (dollars in thousands):

	Employee separation costs			Consolidation of leased facilities			Total
Balance at December 31, 2013	$	235		$	100		$	335
Cash payments		(37	)		—			(37	)
Other		(198	)		(100	)		(298	)
Balance at December 31, 2014	$	—		$	—		$	—

Restructuring Plan 2012

Restructuring Charges.

Summary of changes in the liability related to the restructuring plan included in accounts payable and accrued expenses

        Activity and liability balances recorded as part of the 2012 restructuring plan through December 31, 2014 are as follows (dollars in thousands):

	Employee separation costs
Balance at December 31, 2013	$	75
Utilized—cash		(23	)
Other		(52	)
Balance at December 31, 2014	$	—

Restructuring Plan 2011

Restructuring Charges.

Summary of changes in the liability related to the restructuring plan included in accounts payable and accrued expenses

        Activity and liability balances recorded as part of the 2011 restructuring plan through December 31, 2014 are as follows (dollars in thousands):

	Employee separation costs			Consolidation of leased facilities			Total
Balance at December 31, 2013	$	7		$	1,567		$	1,574
Utilized—cash		(7	)		(734	)		(741	)
Balance at December 31, 2014	$	—		$	833		$	833

Restructuring Plan 2010

Restructuring Charges.

Summary of changes in the liability related to the restructuring plan included in accounts payable and accrued expenses

        Activity and liability balances recorded as part of the 2010 restructuring plan through December 31, 2014 are as follows (dollars in thousands):

	Consolidation of leased facilities
Balance at December 31, 2013	$	1,784
Utilized—cash		(393	)
Balance at December 31, 2014	$	1,391