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Debt - Narrative (Details) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 27, 2013 USD ($) | Mar. 31, 2008 USD ($) annual_installment | Feb. 28, 2019 USD ($) | Feb. 28, 2018 USD ($) | Feb. 28, 2017 USD ($) | Jan. 21, 2011 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term Debt |  |  | $ 240,745,000 | $ 300,895,000 |  |
Repayments of long term debt |  |  | 14,286,000 | 63,504,000 | $ 23,192,000 |
Senior Notes [Member] | Line of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Accordion feature | $ 75,000,000 |  |  |  |  |
Long-term Debt |  |  | 116,000,000 | 162,000,000 |  |
Covenant, maximum leverage ratio | 3.25 |  |  |  |  |
Covenant, minimum fixed charge coverage ratio | 3.00 |  |  |  |  |
Variable rate description | Eurodollar |  |  |  |  |
Letters of credit outstanding |  |  | 18,700,000 |  |  |
Remaining borrowing capacity on line of credit |  |  | 315,300,000 |  |  |
Senior Notes [Member] | Unsecured Senior Notes Due March 2012 through March 2018 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term Debt |  |  | 0 | 14,286,000 |  |
Debt instrument, face amount |  | $ 100,000,000 |  |  |  |
Debt instrument, stated percentage |  | 6.24% |  |  |  |
Number of annual installments | annual_installment |  | 7 |  |  |  |
Annual installments |  | $ 14,300,000 |  |  |  |
Senior Notes [Member] | Unsecured Senior Notes Due January 2021 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term Debt |  |  | 125,000,000 | $ 125,000,000 |  |
Covenant, net worth minimum |  |  | $ 116,900,000 |  |  |
Covenant, minimum retention of future income |  |  | 50.00% |  |  |
Covenant, minimum fixed charge coverage ratio |  |  | 2.0 |  |  |
Debt instrument, face amount |  |  |  |  |  | $ 125,000,000
Debt instrument, stated percentage |  |  |  |  |  | 5.42%
Covenant, minimum ratio of indebtedness to EBIDTA |  |  | 3.25 |  |  |
Covenant, maximum percentage of priority indebtedness |  |  | 10.00% |  |  |
Bank Of America And Other Lenders [Member] | Letter of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Accordion feature | $ 150,000,000 |  |  |  |  |
Bank Of America And Other Lenders [Member] | Line of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Maximum borrowing capacity | 450,000,000 |  |  |  |  |
Covenant, maximum capital lease obligations | 20,000,000 |  |  |  |  |
Covenant, maximum investments in foreign subsidiaries | 50,000,000 |  |  |  |  |
Repayments of long term debt | 75,000,000 |  |  |  |  |
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Maximum borrowing capacity | 225,000,000 |  |  |  |  |
Accordion feature | $ 30,000,000 |  |  |  |  |
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Eurodollar [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread |  |  | 1.00% |  |  |
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Eurodollar [Member] | Minimum [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread |  |  | 0.875% |  |  |
Commitment fees | 0.175% |  |  |  |  |
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Eurodollar [Member] | Maximum [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread |  |  | 1.875% |  |  |
Commitment fees | 0.30% |  |  |  |  |
Revolving Credit Facility [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] | Base Rate [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread |  |  | 0.50% |  |  |
Line of Credit [Member] | Bank Of America And Other Lenders [Member] | Line of Credit [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Maximum borrowing capacity | $ 75,000,000 |  |  |  |  |
Accordion feature | $ 75,000,000 |  |  |  |  |

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