Restructuring Activities (Tables)

12 Months Ended

Dec. 31, 2016

Restructuring and Related Activities [Abstract]

Reconciliation of Accrual for Workforce Reduction

The following is a reconciliation of the accrual for the workforce reduction that is included within the "Accrued Liabilities" line of the consolidated balance sheets for the three- and twelve-months ending December 31, 2016 and 2015:

	Twelve Months Ended
	2016			2015
Restructuring liability at January 1,	$	—		$	—
Amounts expensed	1,428			219
Amounts paid	(1,119		)	(219		)
Restructuring liability at December 31,	$	309		$	—