Quarterly report pursuant to Section 13 or 15(d)

Debt (Int) (Details)

v3.7.0.1
Debt (Int) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Interest expense on convertible debt    
Total interest expense $ 3,522 $ 2,013
Convertible Notes, Credit and Amended and Restated Credit Agreements    
Interest expense on convertible debt    
Coupon interest 755 755
Amortization of issuance costs 1,430 725
Accretion of debt discount 1,337 1,286
Interest on credit agreement 1,345 1,262
Undrawn and other fees 69 64
Total interest expense 4,936 4,092
Convertible Notes    
Interest expense on convertible debt    
Accretion of debt discount $ 1,337 $ 1,286