XML 20 R26.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Long-term Debt (Details) (USD $) |  |  | 1 Months Ended | 6 Months Ended |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2013 | Mar. 31, 2013 | Feb. 29, 2012 Credit facility | Sep. 30, 2013 Credit facility Q tier | Sep. 30, 2013 Credit facility Minimum | Sep. 30, 2013 Credit facility Maximum | Sep. 30, 2013 Credit facility LIBOR | Sep. 30, 2013 Credit facility LIBOR Minimum | Sep. 30, 2013 Credit facility LIBOR Maximum | Sep. 30, 2013 Credit facility CBFR using bank prime rate | Sep. 30, 2013 Credit facility CBFR using bank prime rate Minimum | Sep. 30, 2013 Credit facility CBFR using bank prime rate Maximum | Sep. 30, 2013 Credit facility CBFR using one month LIBOR | Sep. 30, 2013 Credit facility CBFR using one month LIBOR Minimum | Sep. 30, 2013 Credit facility CBFR using one month LIBOR Maximum | Feb. 29, 2012 Letters of credit | May 31, 2012 Revolving line of credit | Sep. 30, 2013 Revolving line of credit | Mar. 31, 2013 Revolving line of credit | Feb. 29, 2012 Revolving line of credit
Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,000,000 |
Long-term portion |  | 4,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective rate of interest (as a percent) | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  | 20,000,000
Description of variable rate basis |  |  |  |  |  |  | LIBOR |  |  | Prime rate |  |  | One month LIBOR |  |  |  |  |  |  |
Spread on variable rate (as a percent) |  |  |  |  |  |  |  | 1.25% | 2.00% |  | (0.50%) | (1.25%) | 2.50% | (0.50%) | (1.25%) |  |  |  |  |
Unused capacity fee (as a percent) |  |  |  |  | 0.15% | 0.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of trailing quarters of EBITDA used to calculate ratio of funded debt to EBITDA |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
High end of ratio of funded debt to the entity's trailing four quarters of EBIDTA for unused capacity fees |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Low end of ratio of funded debt to the entity's trailing four quarters of EBIDTA for unused capacity fees |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of defined tiers of ratio of funded debt to EBITDA |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ratio of funded debt to EBIDTA required to be maintained |  |  |  | 2.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed charge coverage ratio, required to be maintained |  |  |  |  | 1.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowings for facilitating acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,000,000 |  |  |
Principal repayments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000 |  |
Outstanding borrowings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  |

X
- Definition Represents the fixed charge coverage ratio required to be maintained by the entity under the terms of debt arrangement. + References No definition available. + Details
Name: | mlab_DebtInstrumentCovenantFixedChargeCoverageRatio
Namespace Prefix: | mlab_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the ratio of funded debt to EBITDA, required to be maintained under the terms of debt arrangements. + References No definition available. + Details
Name: | mlab_DebtInstrumentCovenantRatioOfFundedDebtToConsolidatedEBITDA
Namespace Prefix: | mlab_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of trailing fiscal quarters of EBITDA used in calculating the ratio of funded debt to the entity's consolidated EBITDA. This ratio is used as the basis for the determination of applicable interest rate adjustments and unused capacity fees. + References No definition available. + Details
Name: | mlab_LineOfCreditFacilityUnusedCapacityFeeNumberOfTrailingFiscalQuartersUsedForCalculationOfRatioOfFundedDebtToConsolidatedEBITDA
Namespace Prefix: | mlab_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the high end of the defined tiers of ratio of funded debt to EBITDA used to determine applicable interest rate adjustments and unused capacity fees. + References No definition available. + Details
Name: | mlab_LineOfCreditFacilityUnusedCapacityFeeRatioOfFundedDebtToEBITDAHighEndOfRange
Namespace Prefix: | mlab_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the low end of the defined tiers of ratio of funded debt to EBITDA used to determine applicable interest rate adjustments and unused capacity fees. + References No definition available. + Details
Name: | mlab_LineOfCreditFacilityUnusedCapacityFeeRatioOfFundedDebtToEBITDALowEndOfRange
Namespace Prefix: | mlab_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of defined tiers of ratio of funded debt to consolidated EBITDA used to determine applicable interest rate adjustments and unused capacity fees. + References No definition available. + Details
Name: | mlab_LineOfCreditFacilityUnusedCapacityFeeRatioOfFundedDebtToEBITDANumberOfTiers
Namespace Prefix: | mlab_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityAmountOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 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 210.5-02.19(b),22(b)) -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, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: 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 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. + 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 + Details
Name: | us-gaap_LongTermDebtPercentageBearingVariableInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
Name: | us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration