Pension and Other Postretirement Benefits - Asset Categories Based on the Nature and Risks of the Plan Assets (Detail) £ in Thousands, $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2024 GBP (£)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 GBP (£)	Dec. 31, 2022 USD ($)
Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	$ 36,101	£ 28,800	$ 42,338	£ 33,257
Fixed Income Securities, International, Corporate Bonds | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	31,254		38,933
Fixed-Income Securities, Commingled Funds (U.K.) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	1,636
Other (Primarily Cash and Cash Equivalents) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	4,847		3,405
Equity Securities, Commingled Funds (U.K.) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets			25,754
Equity Securities, Commingled Funds (International) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	29,618		13,179
Defined Benefit Plan Assets [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	36,101		42,338
Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Other (Primarily Cash and Cash Equivalents) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	643		1,697
Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Defined Benefit Plan Assets [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	643		1,697
Significant Other Observable Inputs (Level 2) [Member] | Fixed Income Securities, International, Corporate Bonds | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	31,254		38,005
Significant Other Observable Inputs (Level 2) [Member] | Fixed-Income Securities, Commingled Funds (U.K.) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	1,636		25,754
Significant Other Observable Inputs (Level 2) [Member] | Other (Primarily Cash and Cash Equivalents) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	4,204		1,708
Significant Other Observable Inputs (Level 2) [Member] | Equity Securities, Commingled Funds (International) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	29,618		12,251
Significant Other Observable Inputs (Level 2) [Member] | Defined Benefit Plan Assets [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	35,458		39,713
Significant Unobservable Inputs (Level 3) [Member] | Fixed Income Securities, International, Corporate Bonds | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets			928
Significant Unobservable Inputs (Level 3) [Member] | Equity Securities, Commingled Funds (International) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets			928
Significant Unobservable Inputs (Level 3) [Member] | Defined Benefit Plan Assets [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets			928
Defined Benefit Pension Plan [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	158,704		163,929		$ 161,374
Defined Benefit Pension Plan [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	36,101		42,338		41,679
Defined Benefit Pension Plan [Member] | Equity Securities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	64,627		84,980
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Consumer Discretionary [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	2,353		3,491
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Consumer Staples [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	894		1,848
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Energy [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	398		791
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Financial [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	2,696		4,659
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Healthcare [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	2,959		5,907
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Industrials [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	3,590		5,117
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Information Technology [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	4,280		6,993
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Materials [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	176		456
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Mutual Funds and ETFs [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	44,830		51,729
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Real Estate [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	107		209
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Telecommunications [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	981		1,674
Defined Benefit Pension Plan [Member] | Equity Securities, U.S., Utilities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	104		211
Defined Benefit Pension Plan [Member] | Equity Securities, International, Consumer Discretionary [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets			64
Defined Benefit Pension Plan [Member] | Equity Securities, International, Financial [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	144		437
Defined Benefit Pension Plan [Member] | Equity Securities, International, Healthcare [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets			114
Defined Benefit Pension Plan [Member] | Equity Securities, International, Industrials [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	401		401
Defined Benefit Pension Plan [Member] | Equity Securities, International, Information Technology [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	488		306
Defined Benefit Pension Plan [Member] | Equity Securities, International, Materials [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	226		573
Defined Benefit Pension Plan [Member] | Fixed Income Securities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	73,690		67,157
Defined Benefit Pension Plan [Member] | Fixed Income Securities, U.S., Corporate Bonds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	35,728		32,482
Defined Benefit Pension Plan [Member] | Fixed Income Securities, Treasury Bonds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	28,253		23,456
Defined Benefit Pension Plan [Member] | Fixed Income Securities, Mutual Funds and ETFs [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	6,566		7,825
Defined Benefit Pension Plan [Member] | Fixed Income Securities, International, Corporate Bonds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	3,143		3,394
Defined Benefit Pension Plan [Member] | Alternative Investments [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	6,081		6,035
Defined Benefit Pension Plan [Member] | Alternative Investments, Managed Funds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	6,081		6,035
Defined Benefit Pension Plan [Member] | Other [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	14,306		5,757
Defined Benefit Pension Plan [Member] | Other (Primarily Cash and Cash Equivalents) [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	14,306		5,757
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	114,188		122,339
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	64,627		84,980
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Consumer Discretionary [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	2,353		3,491
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Consumer Staples [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	894		1,848
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Energy [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	398		791
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Financial [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	2,696		4,659
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Healthcare [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	2,959		5,907
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Industrials [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	3,590		5,117
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Information Technology [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	4,280		6,993
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Materials [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	176		456
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Mutual Funds and ETFs [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	44,830		51,729
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Real Estate [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	107		209
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Telecommunications [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	981		1,674
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, U.S., Utilities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	104		211
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, International, Consumer Discretionary [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets			64
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, International, Financial [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	144		437
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, International, Healthcare [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets			114
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, International, Industrials [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	401		401
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, International, Information Technology [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	488		306
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Equity Securities, International, Materials [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	226		573
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Fixed Income Securities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	34,819		31,281
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Fixed Income Securities, Treasury Bonds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	28,253		23,456
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Fixed Income Securities, Mutual Funds and ETFs [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	6,566		7,825
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Alternative Investments [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	436		321
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Alternative Investments, Managed Funds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	436		321
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Other [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	14,306		5,757
Defined Benefit Pension Plan [Member] | Quoted Prices in Active Markets for Identical Inputs (Level 1) [Member] | Other (Primarily Cash and Cash Equivalents) [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	14,306		5,757
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	38,871		35,876
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		0
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Income Securities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	38,871		35,876
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Income Securities, U.S., Corporate Bonds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	35,728		32,482
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Income Securities, Treasury Bonds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		0
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Income Securities, International, Corporate Bonds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	3,143		3,394
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Alternative Investments [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		0
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Alternative Investments, Managed Funds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		0
Defined Benefit Pension Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other (Primarily Cash and Cash Equivalents) [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		0
Defined Benefit Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	5,645		5,714
Defined Benefit Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] | Foreign Defined Benefits Pension Plans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		928		831
Defined Benefit Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		0
Defined Benefit Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fixed Income Securities [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		0
Defined Benefit Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] | Alternative Investments [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	5,645		5,714		$ 6,569
Defined Benefit Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] | Alternative Investments, Managed Funds [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	5,645		5,714
Defined Benefit Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	0		0
Defined Benefit Pension Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] | Other (Primarily Cash and Cash Equivalents) [Member] | U.S. [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value of plan assets	$ 0		$ 0