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Long-Term Debt (Tables)
 3 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]  
Schedule of long-term debt
Long-term debt consisted of the following (in thousands):
 
 
March 31, 2017
 
December 31, 2016
Revolving credit facility due November 2020
$
89,000

 
$
99,000

Partnership’s revolving credit facility due March 2022
663,000

 
—

Partnership’s revolving credit facility due May 2018
—

 
509,500

 
 
 
 
Partnership’s term loan facility due May 2018
—

 
150,000

Less: Deferred financing costs, net of amortization
—

 
(353
)
 
—

 
149,647

 
 
 
 
Partnership’s 6% senior notes due April 2021
350,000

 
350,000

Less: Debt discount, net of amortization
(3,048
)
 
(3,213
)
Less: Deferred financing costs, net of amortization
(4,109
)
 
(4,366
)
 
342,843

 
342,421

 
 
 
 
Partnership’s 6% senior notes due October 2022
350,000

 
350,000

Less: Debt discount, net of amortization
(3,923
)
 
(4,076
)
Less: Deferred financing costs, net of amortization
(4,563
)
 
(4,768
)
 
341,514

 
341,156

Long-term debt
$
1,436,357

 
$
1,441,724