Note 3 - Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Long-term Debt Instruments [Table Text Block]

	December 31,
	2015		2014
Long-term debt including current portion:
Senior Credit Facility		556,438		556,438
2020 Notes		675,000		675,000
Total outstanding principal		1,231,438		1,231,438
Unamortized net premium - 2020 Notes		4,099		4,963
Net carrying value	$	1,235,537	$	1,236,401
Borrowing availability under the Revolving Credit Facility	$	50,000	$	50,000

Schedule of Maturities of Long-term Debt [Table Text Block]

	Minimum Principal Maturities
Year	Senior Credit Facility		2020 Notes		Total
2016	$	-	$	-	$	-
2017		-		-		-
2018		-		-		-
2019		-		-		-
2020		-		675,000		675,000
Thereafter		556,438		-		556,438
Total	$	556,438	$	675,000	$	1,231,438