5. Restructuring

2017 Restructuring

In the first quarter of fiscal 2017, the Board of Directors reviewed an additional restructuring plan intended to further streamline and flatten the Company’s organization, reduce overall headcount by approximately 16%, and reduce its overall cost structure by another $0.9 - $1.0 million per quarter. The restructuring plan resulted in special charges totaling $0.7 million recorded during the six-month period ending June 30, 2017. These charges were primarily related to severance costs and included $0.4 million of non-cash stock-based compensation severance.

2016 Restructuring

In the fourth quarter of fiscal 2016, the Board of Directors approved a plan of restructurings intended to streamline and flatten the Company’s organization, reduce overall headcount by approximately 30%, and reduce its overall cost structure by approximately $2.5 million per quarter. The restructuring plan resulted in special charges totaling $0.3 million recorded during the three-month period ended December 31, 2016. These charges were primarily related to severance costs and were all paid out by December 31, 2016.

2014 Restructuring

On May 6, 2014, the Board of Directors approved a plan of restructuring intended to streamline and flatten the Company’s organization, reduce overall headcount by approximately 20%, and reduce its overall cost structure by approximately $2.0 million per quarter. The restructuring plan resulted in special charges totaling $1.8 million recorded during the three-month period ended June 30, 2014. These charges were for non-cash stock-based compensation expense of $1.3 million, severance costs for affected employees of $0.4 million, and other related costs of $0.1 million.

2013 Restructuring

On July 25, 2013, the Board of Directors approved a plan of restructuring intended to bring the Company’s operating expenses better in line with revenues. The restructuring plan involved a realignment of organizational structures, facility consolidations/closures, and headcount reductions of approximately 26% of the Company’s worldwide workforce resulting in annualized savings of approximately $16.0 million. The restructuring plan resulted in special charges totaling $5.6 million recorded in the year ended December 31, 2013. These charges were for lease/rental terminations of $3.3 million, severance costs for affected employees of $1.1 million, equipment, and improvements write-offs as a result of our lease/rental terminations of $1.0 million and other related costs of $0.2 million.

In the year ended December 31, 2014, we increased the reserve by $0.6 million due to changes in our assumptions on future sublease income on our lease terminations of $0.8 million, partially offset by adjustments to our one-time employee termination benefits.

Following is the activity in our restructuring liability for the six months ended June 30, 2017 (in thousands):

	December 31, 2016								June 30, 2017
	Balance		Provision-net			Usage			Balance
Lease/rental terminations	$	1,786	$	(3	)	$	(170	)	$	1,613
One-time employee termination benefits		65		805			(574	)		296
Datacenter consolidation, other		109		(93	)		(16	)		—
Total	$	1,960	$	709		$	(760	)	$	1,909

Of the total $1.9 million balance, $0.6 million is reported in Accrued liabilities and $1.3 million is reported in Deferred rent and other long-term liabilities on the balance sheet.