Debt Obligations (Tables)

3 Months Ended

Mar. 31, 2017

DEBT OBLIGATIONS [Abstract]

Schedule of Debt [Table Text Block]

Debt obligations consist of the following:

	As of
(in thousands)	March 31, 2017			December 31, 2016
Credit Facility:
Term loan, due 2019	$	58,125		$	60,000
Revolving credit agreements, due 2019	159,520			159,963
	217,645			219,963
Convertible Debt:
1.50% convertible notes, unsecured, due 2044	360,982			358,293
Other obligations	21,450			23,892
Total debt obligations	600,077			602,148
Unamortized debt issuance costs	(7,702		)	(8,324		)
Carrying value of debt	592,375			593,824
Short-term debt obligations and current maturities of long-term debt obligations	(30,142		)	(32,161		)
Long-term debt obligations	$	562,233		$	561,663