Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Outstanding Debt Obligations

	December 31, 2016			December 31, 2015
Debt:
2015 Revolving Credit Facility	$	313,620		$	145,152
Convertible Notes		45,656			85,000
Mortgages and other		12,755			10,333
Equipment and working capital notes		—			2,832
Capital leases		363			500
Total debt		372,394			243,817
Less: debt discount, net of accretion		(2,735	)		(9,062	)
Total debt, net of unaccreted discount	$	369,659		$	234,755
Less current portion of long-term debt		(43,690	)		(3,187	)
Total long-term debt, net of unaccreted discount	$	325,969		$	231,568

Carrying Amount of Debt

The carrying amount of the principal amount of the liability component, the unamortized discount, and the net carrying amount are as follows as of December 31,:

	2016		2015
Principal amount of debt	$	85,000	$	85,000
Redemption of convertible notes		39,344		-
Unamortized discount		2,735		9,062
Carrying value of debt	$	42,921	$	75,938

Interest Expense Associated with Convertible Notes

Interest expense associated with the Convertible Notes consisted of the following:

	Year to Date Ended
	December 31, 2016		December 31, 2015		December 31, 2014
Contractual coupon rate of interest	$	2,338	$	2,338	$	2,338
Accretion of Convertible Notes discount and    amortization of deferred financing costs		4,426		4,048		3,760
Interest expense for the convertible notes	$	6,764	$	6,386	$	6,098