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Derivative Financial Instruments and Hedging Activities - Schedule of Changes in AOCL (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance $ 8,413    
Other, net of taxes 0 $ 4 $ 5
Ending balance 1,763 8,413  
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance 8,413 10,151 6,441
Additional net losses on cash flow hedges 0 0 12,363
Ineffectiveness of cash flow hedges reclassified to earnings 0 0 (657)
Losses on terminated hedging relationships amortized to earnings (7,042) (1,982) (10,816)
Net (decrease) increase in accumulated losses on cash flow hedges (7,042) (1,982) 890
Decrease in deferred taxes on accumulated losses on cash flow hedges 392 248 2,825
(Decrease) increase in accumulated losses on cash flow hedges, net of taxes (6,650) (1,734) 3,715
Other, net of taxes 0 (4) (5)
Ending balance $ 1,763 $ 8,413 $ 10,151