Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2014

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consist of the following:

	December 31, 2014		December 31, 2013
	(In thousands)
Rebates and lease buyouts	$	6,512	$	1,699
Advance payments from customers	4,834		4,971
Group purchasing organization fees	3,475		2,324
Technology license purchase obligation	—		1,500
Taxes payable	2,181		1,664
Other accrued liabilities	2,297		1,588
Total accrued liabilities	$	19,299	$	13,746