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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2016
Fair Value Disclosures [Abstract]  
Assets And Liabilities Measured At Fair Value On A Recurring Basis
 
 
Carrying Amount in Condensed Consolidated Balance Sheets
 
 
 
Fair Value Measurements Using
 
 
 
Fair Value
 
Level 1
 
Level 2
 
Level 3
(in thousands)
 
March 31, 2016
Cash and cash equivalents
 
$
122,256

 
$
122,256

 
$
122,256

 
$
0

 
$
0

Cash deposit for collateralized interest rate swap
 
27,335

 
27,335

 
27,335

 
0

 
0

Interest rate swap liability
 
23,106

 
23,106

 
0

 
23,106

 
0

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2015
Cash and cash equivalents
 
$
93,424

 
$
93,424

 
$
93,424

 
$
0

 
$
0

Cash deposit for collateralized interest rate swap
 
26,130

 
26,130

 
26,130

 
0

 
0

Interest rate swap liability
 
21,734

 
21,734

 
0

 
21,734

 
0

Estimated Fair Value Of Long-Term Debt
 
 
March 31, 2016
 
December 31, 2015
(in thousands)
 
Carrying
Amount
 
Fair
Value
 
Carrying
Amount
 
Fair
Value
Long-term debt (excluding capital lease obligation)
 
$
536,066

 
$
551,512

 
$
490,920

 
$
515,302