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v3.19.1

Debt - Additional Information (Detail) |  |  | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 04, 2017 USD ($) | Jul. 08, 2014 | Dec. 30, 2018 USD ($) | Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2017 USD ($) | Dec. 07, 2018 USD ($) | Dec. 07, 2018 CAD ($) | Sep. 30, 2018 | Aug. 03, 2017 USD ($) | Apr. 23, 2015 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Increase in Borrowing Capacity Limit | $ 325,000,000 |  |  |  |  |  |  |  |  |  |
Company owned capital stock percentage | 65.00% |  |  |  |  |  |  |  |  |  |
Long-term Debt and Capital Lease Obligations, Current |  |  |  | $ 0 | $ 0 |  |  |  |  |  |
Long-term Debt, Weighted Average Interest Rate, at Point in Time |  |  |  | 4.10% | 3.70% |  |  |  |  |  |
Short term borrowing outstanding amount |  |  |  | $ 54,490,000 | $ 18,341,000 |  |  |  |  |  |
Short-term debt, weighted-average interest rates |  |  |  | 4.00% |  |  |  |  |  |  |
Payments of Debt Issuance Costs |  |  |  | $ 1,393,000 | 2,677,000 |  |  |  |  |  |
Write off of Deferred Debt Issuance Cost |  |  |  | 483,000 | 301,000 |  |  |  |  |  |
Deferred financing fees, net of accumulated amortization |  |  |  | 5,559,000 | 5,965,000 |  |  |  |  |  |
Amortization expense included in interest expense |  |  |  | $ 1,316,000 | 1,302,000 | $ 1,388,000 |  |  |  |  |
2011 Credit Facility Due 2018 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument maturity year |  |  |  | 2018 |  |  |  |  |  |  |
Convertible Notes Payable |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Available lines of credit |  |  |  | $ 546,960,000 | 613,234,000 |  |  |  |  |  |
Stand by letters of credit |  |  |  | 3,955,000 | 3,074,000 |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity, Uncommitted Portion |  |  |  | $ 87,685,000 | 150,459,000 |  |  |  |  |  |
Senior Unsecured 5.00% Due 2023 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  | $ 300,000,000
Interest rate of debt instrument |  |  |  |  |  |  |  |  |  |  | 5.00%
Senior Unsecured 3.375% Convertible Notes Due 2038 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest rate of debt instrument |  |  |  | 3.375% |  |  |  |  |  |  |
Debt instrument maturity year |  |  |  | 2038 |  |  |  |  |  |  |
Interest paid |  |  |  | $ 29,552,000 | $ 23,527,000 | $ 20,781,000 |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Consideration transferred |  |  | $ 250,000,000 |  |  |  |  |  |  |  |
Amended 2017 Term Loan | Term Loam [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | $ 99,105,000 | $ 133,050,000 |  |  |
Amended 2017 Term Loan | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | 449,105,000 |  |  |  |
Amended 2017 Revolver [Member] | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | 700,000,000 |  |  |  |
2017 Revolver borrowings | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | 299,105,000 |  |  |  |
Face value of debt instrument | $ 150,000,000 |  |  |  |  |  |  |  |  |  |
Available lines of credit |  |  |  | 438,315,000 |  |  |  |  |  |  |
2017 Revolver borrowings | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | 600,000,000 |  |  |  |  |  | $ 100,000,000 |  |  |  |
Available lines of credit |  |  |  | 239,000,000 |  |  |  |  |  |  |
Long-term Debt and Capital Lease Obligations, Current |  |  |  | $ 28,098,000 |  |  |  |  |  |  |
2011 Credit Facility Due 2018 | Secured Debt [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Face value of debt instrument |  |  |  |  |  |  |  |  |  | $ 150,000,000 |
Available lines of credit | 123,750,000 |  |  |  |  |  |  |  |  |  |
2011 Credit Facility Due 2018 | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  | $ 500,000,000 |
Available lines of credit | 240,000,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument Quarterly Installments Beginning December 31, 2018 Through December 30, 2019 [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment | 5,625,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument Quarterly Installments Beginning December 31, 2019 Through December 30, 2020 [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment | 8,438,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument Quarterly Installments Beginning December 31, 2020 Through September 29, 2022 [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment | 11,250,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument Final Installments Payable On September 30, 2022 [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment | $ 315,000,000 |  |  |  |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) [Member] | 2017 Revolver And 2017 Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate | 1.25% |  |  |  |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) [Member] | 2017 Revolver And 2017 Term Loan [Member] | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate | 1.25% |  |  |  |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) [Member] | 2017 Revolver And 2017 Term Loan [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate | 2.00% |  |  |  |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) [Member] | Incremental Commitment Agreement [Member] | Revolving Commitments and/or Term Loans [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate |  |  |  |  |  | 1.25% |  |  |  |  |
London Interbank Offered Rate (LIBOR) [Member] | Incremental Commitment Agreement [Member] | Revolving Commitments and/or Term Loans [Member] | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate |  | 1.25% |  |  |  |  |  |  |  |  |
London Interbank Offered Rate (LIBOR) [Member] | Incremental Commitment Agreement [Member] | Revolving Commitments and/or Term Loans [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate |  | 1.75% |  |  |  |  |  |  |  |  |
Higher of Bank of America Prime Rate or Federal Funds Effective Rate [Member] | Incremental Commitment Agreement [Member] | Revolving Commitments and/or Term Loans [Member] | Minimum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate |  | 0.25% |  |  |  |  |  |  |  |  |
Higher of Bank of America Prime Rate or Federal Funds Effective Rate [Member] | Incremental Commitment Agreement [Member] | Revolving Commitments and/or Term Loans [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate |  | 0.75% |  |  |  |  |  |  |  |  |
Federal Funds Effective Swap Rate [Member] | 2017 Revolver And 2017 Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate | 0.50% |  |  |  |  |  |  |  |  |  |
Eurodollar [Member] | 2017 Revolver And 2017 Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate | 1.00% |  |  |  |  |  |  |  |  |  |
CDOR Rate [Member] | 2017 Revolver And 2017 Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest at a floating rate | 0.50% |  |  |  |  |  |  |  |  |  |
Measurement Input, Maximum Leverage Ratio [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  | 4.00 |  |  |  |  |  | 3.50 |  |

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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=109124213&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=109124213&loc=d3e6578-128477 + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: 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 4: 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 + Details
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