Investments & Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2021	Mar. 26, 2021	Sep. 24, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash Equivalents, at Carrying Value	$ 1,056,685
Cash and Cash Equivalents, Fair Value Disclosure			$ 1,225,380
Debt Securities, Available-for-sale, Unrealized Loss	0	$ 0
Debt Securities, Available-for-sale, Amortized Cost	385,303		330,129
Debt Securities, Available-for-sale	385,072		330,401
Debt Securities, Available-for-sale, Unrealized Gain	1
Investment Owned, Unrecognized Unrealized Depreciation	(391)		(52)
Cash Cash Equivalents And Investments Total	1,258,292		1,327,038
Financial assets carried at fair value	1,056,686		1,225,380
Less Than 12 Months, Fair Value	132,741		40,984
Less Than 12 Months, Gross Unrealized Losses	(391)		(52)
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost	275,975		273,884
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	276,054		274,037
Available For Sale Securities Debt Maturities After One Through Two Years Amortized Cost	68,016		40,739
Available For Sale Securities Debt Maturities After One Through Two Years Fair Value	67,866		40,874
Available For Sale Securities Debt Maturities After Two Through Three Years Amortized Cost	41,312		15,506
Available For Sale Securities Debt Maturities After Two Through Three Years Fair Value	41,152		15,490
Investment Owned, at Cost	1,258,523		1,326,765
Investment Owned, Unrecognized Unrealized Appreciation	160		325
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,056,686		1,225,380
Financial assets carried at fair value	1,132,257		1,230,448
Derivative Asset			0
Derivative Liability			0
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0		0
Financial assets carried at fair value	114,065		90,134
Derivative Asset			689
Derivative Liability			(197)
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Financial assets carried at fair value	0
Derivative Asset			0
Derivative Liability			0
Cash [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash Equivalents, at Carrying Value	861,252
Cash and Cash Equivalents, Fair Value Disclosure	861,252		990,182
Cash [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	861,252		990,182
Cash [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Cash [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Commercial Paper [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	4,498
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0
Debt Securities, Available-for-sale	4,499
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	1
Commercial Paper [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	4,499
Money Market Funds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure			235,198
Debt Securities, Available-for-sale, Amortized Cost	185,936
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0
Debt Securities, Available-for-sale	185,936
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0
Money Market Funds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	185,936		235,198
Money Market Funds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Municipal Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	4,999
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0
Debt Securities, Available-for-sale	4,999
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0
Municipal Notes | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	4,999
Municipal Notes | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Money Market Funds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure			235,198
Certificates of Deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less Than 12 Months, Fair Value	1,998		600
Less Than 12 Months, Gross Unrealized Losses	(1)		0
U.S. Agency Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less Than 12 Months, Fair Value	1,440		1,449
Less Than 12 Months, Gross Unrealized Losses	(11)		(2)
U.S. Agency Securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure			0
US Government Agencies Short-term Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0
Debt Securities, Available-for-sale	1,916		1,102
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	9
US Government Agencies Short-term Debt Securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
US Government Agencies Short-term Debt Securities [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	1,916
US Government Agencies Short-term Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Government Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less Than 12 Months, Fair Value	70,076		8,940
Less Than 12 Months, Gross Unrealized Losses	(144)		(16)
Commercial Paper [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less Than 12 Months, Fair Value	2,760		0
Less Than 12 Months, Gross Unrealized Losses	(2)		0
Commercial Paper [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0
Corporate Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less Than 12 Months, Fair Value	43,930		22,964
Less Than 12 Months, Gross Unrealized Losses	(197)		(25)
Municipal Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Less Than 12 Months, Fair Value	12,537		7,031
Less Than 12 Months, Gross Unrealized Losses	(36)		(9)
Short-term Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax			155
Investments Held In Supplemental Retirement Plan [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets carried at fair value	4,881		4,975
Financial liabilities carried at fair value	4,881		4,975
Investments Held In Supplemental Retirement Plan [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets carried at fair value	0
Financial liabilities carried at fair value	0
Investments Held In Supplemental Retirement Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets carried at fair value	0
Financial liabilities carried at fair value	0
Short-term Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost			38,685
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax			1
Debt Securities, Available-for-sale			38,839
Short-term Investments [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	20,071		102
Short-term Investments [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	60,547		38,737
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Certificates of Deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	8,783		1,795
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	1		0
Debt Securities, Available-for-sale	8,782		1,795
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0		0
Short-term Investments [Member] | Certificates of Deposit [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Certificates of Deposit [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	8,782		1,795
Short-term Investments [Member] | Certificates of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | U.S. Agency Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost			1,096
Short-term Investments [Member] | US Government Agencies Short-term Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	1,907
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax			0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax			6
Short-term Investments [Member] | US Government Agencies Short-term Debt Securities [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure			1,102
Short-term Investments [Member] | Government Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	20,070		100
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	7		0
Debt Securities, Available-for-sale	20,071		102
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	8		2
Short-term Investments [Member] | Government Bonds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	20,071		102
Short-term Investments [Member] | Government Bonds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0		0
Short-term Investments [Member] | Government Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Commercial Paper [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	18,534		5,184
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	2		0
Debt Securities, Available-for-sale	18,536		5,186
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	4		2
Short-term Investments [Member] | Commercial Paper [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Commercial Paper [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	18,536		5,186
Short-term Investments [Member] | Commercial Paper [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Corporate Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	21,259		18,850
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	14		0
Debt Securities, Available-for-sale	21,289		18,966
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	44		116
Short-term Investments [Member] | Corporate Debt Securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Corporate Debt Securities [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	21,289		18,966
Short-term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Municipal Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	9,987		11,660
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	1		1
Debt Securities, Available-for-sale	10,024		11,688
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	38		29
Short-term Investments [Member] | Municipal Bonds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Municipal Bonds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	10,024		11,688
Short-term Investments [Member] | Municipal Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Fair Value Disclosure	0
Short-term Investments [Member] | Short-term Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	80,540
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	25
Debt Securities, Available-for-sale	80,618
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	103
Long-term Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost			62,700
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax			51
Debt Securities, Available-for-sale			62,819
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax			170
Long-term Investments [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	55,500		4,966
Long-term Investments [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	53,518		51,397
Long-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | U.S. Agency Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	1,451		2,264
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	11		2
Debt Securities, Available-for-sale	1,440		2,275
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0		13
Long-term Investments [Member] | U.S. Agency Securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | U.S. Agency Securities [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	1,440		2,275
Long-term Investments [Member] | U.S. Agency Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | Government Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	62,399		11,784
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	138		16
Debt Securities, Available-for-sale	62,277		11,806
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	16		38
Long-term Investments [Member] | Government Bonds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	55,500		4,966
Long-term Investments [Member] | Government Bonds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	6,777		6,840
Long-term Investments [Member] | Government Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | Corporate Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	37,042		32,116
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	183		25
Debt Securities, Available-for-sale	36,885		32,152
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	26		61
Long-term Investments [Member] | Corporate Debt Securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | Corporate Debt Securities [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	36,885		32,152
Long-term Investments [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | Municipal Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	8,436		10,080
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	34		8
Debt Securities, Available-for-sale	8,416		10,130
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	14		58
Long-term Investments [Member] | Municipal Bonds [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | Municipal Bonds [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	8,416		10,130
Long-term Investments [Member] | Municipal Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | Other Long-term Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	11,970		6,456
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	0		0
Debt Securities, Available-for-sale	11,970		6,456
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	0		0
Long-term Investments [Member] | Other Long-term Investments [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0		0
Long-term Investments [Member] | Other Long-term Investments [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | Other Long-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, Noncurrent, Fair Value Disclosure	0
Long-term Investments [Member] | Long-term Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	121,298
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax	366
Debt Securities, Available-for-sale	120,988
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax	56
Other Current Assets [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	0
Other Current Assets [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	198
Other Current Assets [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	0
Other Accrued Liabilities | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	0
Other Accrued Liabilities | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(117)
Other Accrued Liabilities | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	0
Derivative Financial Instruments, Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Financial Instruments, Assets, Amortized Cost Basis			0
Derivative Financial Instruments, Unrealized Gain		689
Derivative Financial Instruments, Unrealized Loss		0
Derivative Asset			689
Derivative Financial Instruments, Assets [Member] | Other Current Assets [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Financial Instruments, Assets, Amortized Cost Basis	0
Derivative Financial Instruments, Unrealized Gain	198
Derivative Financial Instruments, Unrealized Loss	0
Derivative Asset	198
Derivative Financial Instruments, Liabilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Financial Instruments, Unrealized Gain		0
Derivative Financial Instruments, Unrealized Loss		$ (197)
Derivative Financial Instruments, Liabilities, Amortized Cost Basis			0
Derivative Liability			$ (197)
Derivative Financial Instruments, Liabilities [Member] | Other Accrued Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Financial Instruments, Unrealized Gain	0
Derivative Financial Instruments, Unrealized Loss	(117)
Derivative Financial Instruments, Liabilities, Amortized Cost Basis	0
Derivative Liability	$ (117)