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v3.20.2

Debt - (Additional Information) (Details) |  |  | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 11, 2019 USD ($) | Aug. 04, 2017 USD ($) | Oct. 04, 2020 USD ($) | Sep. 30, 2019 USD ($) | Oct. 04, 2020 USD ($) | Sep. 30, 2019 USD ($) | Mar. 31, 2020 USD ($) | Dec. 28, 2019 | Mar. 31, 2019 USD ($) | Mar. 31, 2019 CAD ($) | Apr. 23, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Increase in borrowing capacity limit |  | $ 325,000,000 |  |  |  |  |  |  |  |  |
Company owned capital stock, percentage securing senior secured credit facility |  | 65.00% |  |  |  |  |  |  |  |  |
Short-term debt |  |  | $ 31,813,000 |  | $ 31,813,000 |  | $ 46,544,000 |  |  |  |
Short-term debt, weighted average interest rate |  |  | 2.00% |  | 2.00% |  | 3.00% |  |  |  |
Amortization expense relating to debt issuance costs and included in interest expense |  |  | $ 518,000 | $ 374,000 | $ 1,036,000 | $ 752,000 |  |  |  |  |
Deferred issuance costs, net of accumulated amortization |  |  | 7,457,000 |  | 7,457,000 |  | $ 8,493,000 |  |  |  |
4.375% Senior Notes due 2027 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt | $ 300,000,000 |  | $ 300,000,000 |  | $ 300,000,000 |  |  |  |  |  |
Interest rate | 4.375% |  | 4.375% |  | 4.375% |  |  |  |  |  |
Proceeds from issuance of debt, net of debt issuance costs | $ 296,250,000 |  |  |  |  |  |  |  |  |  |
5.00% Senior Notes due 2023 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  | $ 300,000,000 |  | $ 300,000,000 |  |  |  |  |  | $ 300,000,000
Interest rate |  |  | 5.00% |  | 5.00% |  |  |  |  |  | 5.00%
Standby Letters of Credit |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Available lines of credit |  |  | $ 765,768,000 |  | $ 765,768,000 |  | 693,640,000 |  |  |  |
Stand by letters of credit |  |  | 7,720,000 |  | 7,720,000 |  | 7,720,000 |  |  |  |
Outstanding amount |  |  | 123,074,000 |  | 123,074,000 |  | $ 105,946,000 |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  |  |  | 250,000 |  |  |  |  |  |
Amended Credit Facility, due 2022 | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 600,000,000 |  |  |  |  |  |  | $ 100,000,000 |  |
Available lines of credit |  |  | 53,000,000 |  | 53,000,000 |  |  |  |  |  |
Amended Credit Facility, due 2022 | Secured Debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  | 299,105,000 |  |
Debt instrument, face amount |  | $ 150,000,000 |  |  |  |  |  |  |  |  |
Available lines of credit |  |  | 393,665,000 |  | 393,665,000 |  |  |  |  |  |
Current portion of long-term debt |  |  | $ 44,990,000 |  | $ 44,990,000 |  |  |  |  |  |
Amended 2017 Term Loan | Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  | 99,105,000 |  |
Amended 2017 Term Loan | Secured Debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  | 449,105,000 | $ 133,050,000 |
Amended 2017 Revolver | Secured Debt |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  | $ 700,000,000 |  |
LIBOR | 2017 Revolver And 2017 Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.50% |  |  |  |  |  |  |  |  |
LIBOR | 2017 Revolver And 2017 Term Loan | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.25% |  |  |  |  |  |  |  |  |
LIBOR | 2017 Revolver And 2017 Term Loan | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 2.00% |  |  |  |  |  |  |  |  |
Federal Funds Effective Rate | 2017 Revolver And 2017 Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.50% |  |  |  |  |  |  |  |  |
Eurocurrency Base Rate | 2017 Revolver And 2017 Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |  |  |  |  |  |  |
CDOR | 2017 Revolver And 2017 Term Loan |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.50% |  |  |  |  |  |  |  |  |
Debt Instrument Quarterly Installments Beginning December 31, 2018 Through December 30, 2019 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, periodic payment |  | $ 5,645,000 |  |  |  |  |  |  |  |  |
Debt Instrument Quarterly Installments Beginning December 31, 2019 Through December 30, 2020 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, periodic payment |  | 8,468,000 |  |  |  |  |  |  |  |  |
Debt Instrument Quarterly Installments Beginning December 31, 2020 Through September 29, 2022 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, periodic payment |  | 11,290,000 |  |  |  |  |  |  |  |  |
Debt Instrument Final Installments Payable On September 30, 2022 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, periodic payment |  | $ 320,000,000 |  |  |  |  |  |  |  |  |
Maximum Leverage Ratio |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Measurement input |  |  | 3.50 |  | 3.50 |  |  | 4.00 |  |  |
Maximum Leverage Ratio | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Measurement input |  |  | 3.50 |  | 3.50 |  |  |  |  |  |
Maximum Leverage Ratio | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Measurement input |  |  | 4.00 |  | 4.00 |  |  |  |  |  |
Prior to September 15, 2027 | 4.375% Senior Notes due 2027 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption percentage |  |  |  |  | 100.00% |  |  |  |  |  |
On or after September 15, 2027 | 4.375% Senior Notes due 2027 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption percentage |  |  |  |  | 100.00% |  |  |  |  |  |
Change of control triggering event | 4.375% Senior Notes due 2027 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption percentage |  |  |  |  | 101.00% |  |  |  |  |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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
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- Definition Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- 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://fasb.org/us-gaap/role/ref/legacyRef -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 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 3: http://fasb.org/us-gaap/role/ref/legacyRef -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=119400593&loc=d3e572229-122910 + Details
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- 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://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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