XML 14 R48.htm IDEA: XBRL DOCUMENT v2.4.0.8
Employee Benefit Plans - Amounts Included in Regulatory Asset and Accumulated Other Comprehensive Income/Loss Recognized as Net Periodic Benefit Cost (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]        
Prior service cost (credit) $ (14) $ (14) $ (44) $ (45)
Net loss 65 172 198 517
Recognized from accumulated other comprehensive loss 51 92 154 275
Recognized from regulatory asset 0 66 0 197
Total recognized in net periodic benefit cost 51 158 154 472
Chesapeake Pension Plan [Member]
       
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]        
Prior service cost (credit) 0 0 0 (1)
Net loss 37 57 112 171
Recognized from accumulated other comprehensive loss 37 57 112 170
Total recognized in net periodic benefit cost 37 57 112 170
FPU Pension Plan [Member]
       
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]        
Net loss 0 81 0 243
Recognized from accumulated other comprehensive loss 0 15 0 46
Recognized from regulatory asset 0 66 0 197
Total recognized in net periodic benefit cost 0 81 0 243
Chesapeake Pension SERP [Member]
       
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]        
Prior service cost (credit) 5 5 14 14
Net loss 12 16 36 48
Recognized from accumulated other comprehensive loss 17 21 50 62
Total recognized in net periodic benefit cost 17 21 50 62
Chesapeake Postretirement Plan [Member]
       
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]        
Prior service cost (credit) (19) (19) (58) (58)
Net loss 16 18 50 55
Recognized from accumulated other comprehensive loss (3) (1) (8) (3)
Total recognized in net periodic benefit cost $ (3) $ (1) $ (8) $ (3)