Employee Severance Benefits (Tables)

12 Months Ended

Dec. 31, 2015

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Provision for Employee Severance Benefits

The balance of the employee severance benefits was paid in 2015. The employee severance benefits were as follows:

	2014			2015
Provision for employee severance benefits:
Balance at January 1	$	11,003		$	104
Provision for the year		195			—
Payments during the year		(11,094	)		(104	)
Balance at December 31	$	104		$	—