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Benefit Plans Benefit Plans (Detail 12) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | $ 825,774 | $ 753,030
Foreign Currency Exchange Rate Changes, Plan Assets | 17,881 | 20,354
Fair Value of Plan Assets, Ending | 904,435 | 825,774
Level 3 |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 99,697 | 116,493
Defined Benefit Plan, Actual Return on Plan Assets Still Held | 1,040 | 1,663
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 2,560
Defined Benefit Plan,Purchases, Total | 11,919 | 8,799
Defined Benefit Plan Sales, Total | (13,210) | (32,219)
Foreign Currency Exchange Rate Changes, Plan Assets | 2,477 | 2,401
Fair Value of Plan Assets, Ending | 101,923 | 99,697
Other Types of Investments, Multi-Strategy Fund of Hedge Funds |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Ending | 77,312 | 74,985
Other Types of Investments, Multi-Strategy Fund of Hedge Funds | Level 3 |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 74,985 | 78,650
Defined Benefit Plan, Actual Return on Plan Assets Still Held | 1,420 | 1,099
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 317
Defined Benefit Plan,Purchases, Total | 11,792 | 8,638
Defined Benefit Plan Sales, Total | (12,691) | (15,418)
Foreign Currency Exchange Rate Changes, Plan Assets | 1,806 | 1,699
Fair Value of Plan Assets, Ending | 77,312 | 74,985
Real Asset Mutual Funds, Commodities |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Ending | 49,752 | 57,737
Real Asset Mutual Funds, Commodities | Level 3 |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 22,986 | 21,816
Defined Benefit Plan, Actual Return on Plan Assets Still Held | (449) | 533
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 0
Defined Benefit Plan,Purchases, Total | 0 | 0
Defined Benefit Plan Sales, Total | 0 | 0
Foreign Currency Exchange Rate Changes, Plan Assets | 599 | 637
Fair Value of Plan Assets, Ending | 23,136 | 22,986
Fixed Income Mutual Funds, Insurance Contracts |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Ending | 26,108 | 24,741
Fixed Income Mutual Funds, Insurance Contracts | Level 3 |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 1,726 | 1,661
Defined Benefit Plan, Actual Return on Plan Assets Still Held | 69 | 31
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 3
Defined Benefit Plan,Purchases, Total | 127 | 161
Defined Benefit Plan Sales, Total | (519) | (165)
Foreign Currency Exchange Rate Changes, Plan Assets | 72 | 35
Fair Value of Plan Assets, Ending | 1,475 | 1,726
Other Types of Investments, Convertible Preferred Equity Certificates | Level 3 |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 0 | 14,366
Defined Benefit Plan, Actual Return on Plan Assets Still Held | 0 | 0
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 2,240
Defined Benefit Plan,Purchases, Total | 0 | 0
Defined Benefit Plan Sales, Total | 0 | (16,636)
Foreign Currency Exchange Rate Changes, Plan Assets | 0 | 30
Fair Value of Plan Assets, Ending | $ 0 | $ 0

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- Definition Purchases of plan assets that occurred during the period. + References No definition available. + Details
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- Definition Sale of plan assets that occurred during the period. + References No definition available. + Details
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- Details
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- Definition Actual return on plan assets, separately identifying the amount related to assets sold during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920 + Details
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- Definition Actual return on plan assets, separately identifying the amount related to assets still held at the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(iv)(02)(A) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920 + Details
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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930 + Details
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- Definition The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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