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Long-Term Debt (Tables)
3 Months Ended
Mar. 31, 2018
Debt Instrument [Line Items]  
Summary of long-term debt
The Company carries its long-term debt at face value, net of applicable discounts and capitalized debt issuance costs. Long-term debt consisted of the following:
 
 
March 31, 2018
 
December 31, 2017
 
 
(in thousands)
5.00% Senior Notes (aggregate principal of $550,000 at March 31, 2018 and December 31, 2017)
 
$
542,474

 
$
542,063

5.25% Senior Notes (aggregate principal of $300,000 at March 31, 2018 and December 31, 2017)
 
296,295

 
296,151

Acquisition Line
 
28,035

 
26,988

Real Estate Related and Other Long-Term Debt
 
500,716

 
440,845

Capital lease obligations related to real estate, maturing in varying amounts through December 2037 with a weighted average interest rate of 8.7% and 10.4%, respectively
 
67,445

 
51,665

 
 
1,434,965

 
1,357,712

Less current maturities of long-term debt
 
58,195

 
39,528

 
 
$
1,376,770

 
$
1,318,184