Debt Instrument, Convertible, Discount Amortization Period

No definition available.

Name:	moh_DebtInstrumentConvertibleDiscountAmortizationPeriod
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Convertible, Maximum Threshold Percentage of Stock Price Trigger

+ References

No definition available.

+ Details

Name:	moh_DebtInstrumentConvertibleMaximumThresholdPercentageofStockPriceTrigger
Namespace Prefix:	moh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Additional interest rate per year to be payable for any semiannual interest period for which principal amount outstanding on Notes is less than the required amount

+ References

No definition available.

+ Details

Name:	moh_DebtInstrumentInterestRateIncreaseContingentonPrincipalAmountOutstanding
Namespace Prefix:	moh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Interest Rate Increase, Minimum Principal Amount Outstanding Threshold

+ References

No definition available.

+ Details

Name:	moh_DebtInstrumentInterestRateIncreaseMinimumPrincipalAmountOutstandingThreshold
Namespace Prefix:	moh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Potential Maximum Borrowing Capacity

+ References

No definition available.

+ Details

Name:	moh_LineofCreditFacilityPotentialMaximumBorrowingCapacity
Namespace Prefix:	moh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The portion of the carrying value of long-term convertible debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. Convertible debt is a financial instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20
-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031897-161870

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Conversion Rate
-URI http://asc.fasb.org/extlink&oid=6509012

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(5))
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
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-Topic 505
-SubTopic 10
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-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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-Topic 835
-SubTopic 30
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Start date of debt instrument redemption period, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodStartDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of when the fee for available but unused credit capacity is required to be paid (for example, annually, quarterly, or monthly).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityFrequencyOfCommitmentFeePayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Line-of-Credit Arrangement
-URI http://asc.fasb.org/extlink&oid=6517033

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20
-Article 5

+ Details

Name:	us-gaap_LinesOfCreditCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=moh_SeniorNotesDue2022Member
Namespace Prefix:
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- Details

Name:	us-gaap_DebtInstrumentAxis=moh_CashConvertibleSeniorNotesDue2020Member
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Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=moh_ConvertibleSeniorNotesDue2014Member
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- Details

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- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
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Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_ExtinguishmentOfDebtAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtConversionByUniqueDescriptionAxis=moh_A3.75ConvertibleNoteExchangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Period Type:

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Debt - Senior Notes (Details) $ / shares in Units, shares in Thousands			1 Months Ended				6 Months Ended	12 Months Ended
	Nov. 10, 2015 USD ($)	Jun. 12, 2015 USD ($)	Oct. 30, 2014 USD ($)	Sep. 30, 2014 USD ($) d $ / shares	Aug. 30, 2014 USD ($) shares	Feb. 28, 2013 USD ($) d $ / shares	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($) $ / shares	Dec. 31, 2014 USD ($) shares	Jun. 30, 2015 USD ($)
5.375% Senior Notes due 2022
Debt Instrument [Line Items]
Percentage of contractual interest rate							5.375%	5.375%
1.125% Cash Convertible Senior Notes due 2020
Debt Instrument [Line Items]
Percentage of contractual interest rate							1.125%	1.125%
Senior note effective interest rate (in percent)								6.00%
Senior notes amortization period								4 years
Convertible debt, if-converted value in excess of principal								$ 332,000,000	$ 93,000,000
3.75% Convertible Senior Notes due 2014
Debt Instrument [Line Items]
Repayments of debt amount			$ 10,000,000
1.625% Convertible Notes
Debt Instrument [Line Items]
Percentage of contractual interest rate							1.625%	1.625%
Senior Notes \| 5.375% Senior Notes due 2022
Debt Instrument [Line Items]
Principal amount	$ 700,000,000
Percentage of contractual interest rate	5.375%
Debt redemption price, percentage of principal amount	100.00%
Senior Notes \| 1.125% Cash Convertible Senior Notes due 2020
Debt Instrument [Line Items]
Principal amount						$ 550,000,000
Percentage of contractual interest rate						1.125%
Current portion of long-term debt to be converted within 12 months								$ 448,000,000
Initial conversation rate on Notes						0.0245277
Debt instrument conversion price per share \| $ / shares						$ 40.77
Senior note effective interest rate (in percent)							6.00%
Senior notes amortization period							3 years 6 months
Convertible debt, if-converted value in excess of principal							$ 180,000,000	$ 332,000,000
Senior Notes \| 3.75% Convertible Senior Notes due 2014
Debt Instrument [Line Items]
Initial conversation rate on Notes				0.0172157
Convertible Debt \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Term of debt instrument				4 years
Principal amount				$ 301,551,000.000
Percentage of contractual interest rate				1.625%
Initial conversation rate on Notes				0.0172157
Debt instrument conversion price per share \| $ / shares				$ 58.09				$ 58.09
Senior note effective interest rate (in percent)							5.00%	5.00%
Convertible debt, if-converted value in excess of principal								$ 10,000,000
Proceeds from issuance of debt				$ 125,000,000.0	$ 177,000,000
Frequency of periodic payment							semiannually	semiannually
Additional interest payable for any semiannual interest period with 1.625% Notes outstanding less than $100 million				0.25%
Minimum principal amount outstanding threshold for interest rate increase							$ 100,000,000	$ 100,000,000
Redemption period start date							Aug. 19, 2018	Aug. 19, 2018
Debt redemption price, percentage of principal amount							100.00%	100.00%
Debt discount amortization period							2 years 1 month	2 years 7 months
Convertible debt, carrying amount of equity component							$ 23,000,000	$ 23,000,000
Convertible Debt \| 3.75% Convertible Senior Notes due 2014
Debt Instrument [Line Items]
Percentage of contractual interest rate					3.75%
Amount of debt extinguished					$ 177,000,000
3.75% Convertible Note Exchange
Debt Instrument [Line Items]
Shares issued in connection with exchange \| shares					2,000
Shares issued for services render in connection with the 3.75% exchange \| shares									81
Redemption period, option one \| Senior Notes \| 1.125% Cash Convertible Senior Notes due 2020
Debt Instrument [Line Items]
Debt convertible threshold trading days \| d						20
Debt convertible threshold consecutive trading days						30 days
Debt convertible threshold percentage of stock price trigger						130.00%
Redemption period, option one \| Senior Notes \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Debt convertible threshold trading days \| d				20
Debt convertible threshold consecutive trading days				30 days
Debt convertible threshold percentage of stock price trigger				130.00%
Redemption period, option one \| Convertible Debt \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Debt convertible threshold trading days \| d				20
Debt convertible threshold consecutive trading days				30 days
Debt convertible threshold percentage of stock price trigger				130.00%
Redemption period, option two \| Senior Notes \| 1.125% Cash Convertible Senior Notes due 2020
Debt Instrument [Line Items]
Debt convertible threshold trading days \| d						5
Debt convertible threshold consecutive trading days						5 days
Debt convertible maximum threshold percentage of stock price						98.00%
Redemption period, option two \| Senior Notes \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Debt convertible threshold trading days \| d				5
Debt convertible threshold consecutive trading days				5 days
Debt convertible maximum threshold percentage of stock price				98.00%
Redemption period, option two \| Convertible Debt \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Debt convertible threshold trading days \| d				5
Debt convertible threshold consecutive trading days				5 days
Debt convertible maximum threshold percentage of stock price				98.00%
August 19, 2018 \| Convertible Debt \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Redemption period start date							Aug. 19, 2018	Aug. 19, 2018
August 19, 2024 \| Convertible Debt \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Redemption period start date							Aug. 19, 2024	Aug. 19, 2024
August 19, 2029 \| Convertible Debt \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Redemption period start date							Aug. 19, 2029	Aug. 19, 2029
August 19, 2034 \| Convertible Debt \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Redemption period start date							Aug. 19, 2034	Aug. 19, 2034
August 19, 2039 \| Convertible Debt \| 1.625% Convertible Notes
Debt Instrument [Line Items]
Redemption period start date							Aug. 19, 2039	Aug. 19, 2039
Revolving Credit Facility \| Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 250,000,000
Term of debt instrument		5 years
Potential maximum borrowing capacity		$ 350,000,000								$ 350,000,000
Current borrowing capacity							$ 244,000,000	$ 244,000,000
Amount outstanding under the Credit Facility							$ 0	$ 0
Frequency of commitment fee payment							quarterly	quarterly
Letter of Credit
Debt Instrument [Line Items]
Amount outstanding under Letter of Credit							$ 6,000,000	$ 6,000,000