Consolidated Statements of Deficit (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		$ (601,884)
WMLP distributions		(795)
Common stock issued as compensation		5,925
Issuance of restricted stock		(192)
Net loss	$ (8,760)	(4,849)
Other comprehensive income		20,587
Ending balance	(581,208)	(581,208)
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		$ 182
Beginning balance, shares		18,162,148
Common stock issued as compensation		$ 3
Common stock options exercised, shares		342,353
Issuance of restricted stock		$ 1
Issuance of restricted stock, shares		66,141
Ending balance	$ 186	$ 186
Ending balance, shares	18,570,642	18,570,642
Other Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		$ 240,721
Common stock issued as compensation		5,922
Issuance of restricted stock		(193)
Ending balance	$ 246,450	246,450
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		(171,300)
Other comprehensive income		20,574
Ending balance	(150,726)	(150,726)
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		(672,219)
Net loss		(3,304)
Ending balance	(675,523)	(675,523)
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		732
WMLP distributions		(795)
Common stock issued as compensation		0
Net loss		(1,545)
Other comprehensive income		13
Ending balance	$ (1,595)	$ (1,595)