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Benefit Plans Benefit Plans (Detail 10) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | $ 883,223 | $ 904,435
Foreign Currency Exchange Rate Changes, Plan Assets | (9,323) | (79,810)
Fair Value of Plan Assets, Ending | 844,715 | 883,223
Level 3 |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 110,535 | 101,923
Defined Benefit Plan, Actual Return on Plan Assets Still Held | 8,883 | 7,442
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 4,811
Defined Benefit Plan,Purchases, Total | 12,990 | 28,012
Defined Benefit Plan Sales, Total | (8,317) | (21,703)
Foreign Currency Exchange Rate Changes, Plan Assets | (477) | (9,950)
Fair Value of Plan Assets, Ending | 123,614 | 110,535
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, Beginning | 80,951 |
Fair Value of Plan Assets, Ending | 88,742 | 80,951
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 | 80,951 | 77,312
Defined Benefit Plan, Actual Return on Plan Assets Still Held | 6,453 | 4,456
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 4,811
Defined Benefit Plan,Purchases, Total | 9,980 | 22,867
Defined Benefit Plan Sales, Total | (8,317) | (21,649)
Foreign Currency Exchange Rate Changes, Plan Assets | (325) | (6,846)
Fair Value of Plan Assets, Ending | 88,742 | 80,951
Real Asset Mutual Funds, Commodities |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 52,234 |
Fair Value of Plan Assets, Ending | 58,477 | 52,234
Real Asset Mutual Funds, Commodities | Level 3 |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 28,196 | 23,136
Defined Benefit Plan, Actual Return on Plan Assets Still Held | 2,408 | 2,952
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 0
Defined Benefit Plan,Purchases, Total | 2,911 | 5,030
Defined Benefit Plan Sales, Total | 0 | 0
Foreign Currency Exchange Rate Changes, Plan Assets | (10) | (2,922)
Fair Value of Plan Assets, Ending | 33,505 | 28,196
Fixed Income Mutual Funds, Insurance Contracts |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 24,676 |
Fair Value of Plan Assets, Ending | 21,718 | 24,676
Fixed Income Mutual Funds, Insurance Contracts | Level 3 |  |
Rollforward of Activity for Level 3 Asset Categories [Roll Forward] |  |
Fair Value of Plan Assets, Beginning | 1,388 | 1,475
Defined Benefit Plan, Actual Return on Plan Assets Still Held | 22 | 34
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period |  | 0
Defined Benefit Plan,Purchases, Total | 99 | 115
Defined Benefit Plan Sales, Total | 0 | (54)
Foreign Currency Exchange Rate Changes, Plan Assets | (142) | (182)
Fair Value of Plan Assets, Ending | $ 1,367 | $ 1,388

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- Definition Purchases of plan assets that occurred during the period. + References No definition available. + Details
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- Definition Rollforward of Activity for Level 3 Asset Categories + References No definition available. + 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=58740216&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=58740216&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=58740216&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=58740216&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 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930 Reference 2: 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=58740216&loc=d3e1928-114920 + 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=58740216&loc=d3e1928-114920 + Details
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