XML 19 R27.htm IDEA: XBRL DOCUMENT v2.4.0.8
Defined Benfit Plan (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Sep. 30, 2013
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Dec. 31, 2012
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Significant Observable Inputs, Level 2 [Member]
Dec. 31, 2012
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Significant Unobservable Inputs, Level 3 [Member]
Dec. 31, 2012
Significant Unobservable Inputs, Level 3 [Member]
Sep. 30, 2013
Equity Securities [Member]
Dec. 31, 2012
Equity Securities [Member]
Sep. 30, 2013
Fixed Income Securities [Member]
Dec. 31, 2012
Fixed Income Securities [Member]
Sep. 30, 2013
Cash and cash equivalents [Member]
Dec. 31, 2012
Cash and cash equivalents [Member]
Sep. 30, 2013
Cash and cash equivalents [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Dec. 31, 2012
Cash and cash equivalents [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Cash and cash equivalents [Member]
Significant Observable Inputs, Level 2 [Member]
Dec. 31, 2012
Cash and cash equivalents [Member]
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Cash and cash equivalents [Member]
Significant Unobservable Inputs, Level 3 [Member]
Dec. 31, 2012
Cash and cash equivalents [Member]
Significant Unobservable Inputs, Level 3 [Member]
Sep. 30, 2013
Actively Managed [Member]
All Cap Equity Fund [Member]
Sep. 30, 2013
Actively Managed [Member]
All Cap Equity Fund [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Actively Managed [Member]
All Cap Equity Fund [Member]
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Actively Managed [Member]
All Cap Equity Fund [Member]
Significant Unobservable Inputs, Level 3 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Large Cap Equity [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Large Cap Equity [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Large Cap Equity [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Large Cap Equity [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Large Cap Equity [Member]
Significant Observable Inputs, Level 2 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Large Cap Equity [Member]
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Large Cap Equity [Member]
Significant Unobservable Inputs, Level 3 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Large Cap Equity [Member]
Significant Unobservable Inputs, Level 3 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Mid Cap Equity [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Mid Cap Equity [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Mid Cap Equity [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Mid Cap Equity [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Mid Cap Equity [Member]
Significant Observable Inputs, Level 2 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Mid Cap Equity [Member]
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Mid Cap Equity [Member]
Significant Unobservable Inputs, Level 3 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Mid Cap Equity [Member]
Significant Unobservable Inputs, Level 3 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Small Cap Equity [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Small Cap Equity [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Small Cap Equity [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Small Cap Equity [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Small Cap Equity [Member]
Significant Observable Inputs, Level 2 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Small Cap Equity [Member]
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Actively Managed [Member]
U.S. Small Cap Equity [Member]
Significant Unobservable Inputs, Level 3 [Member]
Dec. 31, 2012
Actively Managed [Member]
U.S. Small Cap Equity [Member]
Significant Unobservable Inputs, Level 3 [Member]
Sep. 30, 2013
Actively Managed [Member]
Non-U.S. Large Cap Equity [Member]
Dec. 31, 2012
Actively Managed [Member]
Non-U.S. Large Cap Equity [Member]
Sep. 30, 2013
Actively Managed [Member]
Non-U.S. Large Cap Equity [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Dec. 31, 2012
Actively Managed [Member]
Non-U.S. Large Cap Equity [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Actively Managed [Member]
Non-U.S. Large Cap Equity [Member]
Significant Observable Inputs, Level 2 [Member]
Dec. 31, 2012
Actively Managed [Member]
Non-U.S. Large Cap Equity [Member]
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Actively Managed [Member]
Non-U.S. Large Cap Equity [Member]
Significant Unobservable Inputs, Level 3 [Member]
Dec. 31, 2012
Actively Managed [Member]
Non-U.S. Large Cap Equity [Member]
Significant Unobservable Inputs, Level 3 [Member]
Sep. 30, 2013
Passive Index Fund ETFs [Member]
REIT [Member]
Dec. 31, 2012
Passive Index Fund ETFs [Member]
REIT [Member]
Sep. 30, 2013
Passive Index Fund ETFs [Member]
REIT [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Dec. 31, 2012
Passive Index Fund ETFs [Member]
REIT [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Passive Index Fund ETFs [Member]
REIT [Member]
Significant Observable Inputs, Level 2 [Member]
Dec. 31, 2012
Passive Index Fund ETFs [Member]
REIT [Member]
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Passive Index Fund ETFs [Member]
REIT [Member]
Significant Unobservable Inputs, Level 3 [Member]
Dec. 31, 2012
Passive Index Fund ETFs [Member]
REIT [Member]
Significant Unobservable Inputs, Level 3 [Member]
Sep. 30, 2013
Fixed Income [Member]
Dec. 31, 2012
Fixed Income [Member]
Sep. 30, 2013
Fixed Income [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Dec. 31, 2012
Fixed Income [Member]
Quoted Prices in Active Markets for Identical Assets, Level 1 [Member]
Sep. 30, 2013
Fixed Income [Member]
Significant Observable Inputs, Level 2 [Member]
Dec. 31, 2012
Fixed Income [Member]
Significant Observable Inputs, Level 2 [Member]
Sep. 30, 2013
Fixed Income [Member]
Significant Unobservable Inputs, Level 3 [Member]
Dec. 31, 2012
Fixed Income [Member]
Significant Unobservable Inputs, Level 3 [Member]
Components of Net Periodic Benefit Cost [Abstract]                                                                                                                                                      
Service cost $ 1,239 $ 1,157 $ 3,717 $ 3,470                                                                                                                                              
Interest cost 1,475 1,450 4,425 4,351                                                                                                                                              
Other cost 1,208 1,166 3,624 3,498                                                                                                                                              
Expected return on assets (1,380) (1,148) (4,140) (3,445)                                                                                                                                              
Net periodic benefit cost 2,542 2,625 7,626 7,874                                                                                                                                              
Plan Assets [Abstract]                                                                                                                                                      
Fair value of plan assets 85,702   85,702   79,020 45,681 40,137 40,021 38,883 0 0         3,553 7,056 3,553 7,056 0 0 0 0 261 [1] 243 [1] 18 [1] 0 [1] 29,154 [1] 22,749 [1] 29,154 [1] 22,749 [1] 0 [1] 0 [1] 0 [1] 0 [1] 5,110 [1] 3,989 [1] 5,110 [1] 3,989 [1] 0 [1] 0 [1] 0 [1] 0 [1] 2,979 [1] 2,174 [1] 2,979 [1] 2,174 [1] 0 [1] 0 [1] 0 [1] 0 [1] 4,642 [1] 4,169 [1] 4,642 [1] 4,169 [1] 0 [1] 0 [1] 0 [1] 0 [1] 3,957 [1] 3,792 [1] 0 [1] 0 [1] 3,957 [1] 3,792 [1] 0 [1] 0 [1] 36,046 [2] 35,091 [2] 0 [2] 0 [2] 36,046 [2] 35,091 [2] 0 [2] 0 [2]
Target plan asset allocations                       55.00% 55.00% 45.00% 45.00%                                                                                                                        
Employer Contributions [Abstract]                                                                                                                                                      
Estimated employer contributions for the current fiscal year 10,300   10,300                                                                                                                                                
Actual employer contribution amount in current period $ 1,489   $ 2,978                                                                                                                                                
[1] Actively managed portfolio of securities with the goal to exceed the stated benchmark performance.
[2] Actively managed portfolio of fixed income securities with the goal to exceed the Barclays 1-5 Year Government/Credit, Barclays Intermediate Government/Credit, and Merrill Lynch Preferred Stock Fixed Rate.