Leases of Lessess (Tables)

6 Months Ended

Sep. 30, 2020

Leases of Lessees [Abstract]

Schedule of supplemental balance sheet information related to leases [Table Text Block]

The following table sets forth the right-of-use assets and lease liabilities for operating leases included in the Company’s consolidated balance sheet:

(in thousands of dollars)	September 30, 2020		September 30, 2019		March 31, 2020
Assets
Operating lease right-of-use assets	$	35,665	$	34,838	$	39,256
Liabilities
Current portion of operating lease liabilities	$	9,105	$	8,591	$	9,823
Long-term operating lease liabilities	22,813		23,331		25,893
Total operating lease liabilities	$	31,918	$	31,922	$	35,716

Schedule of supplemental income statement information related to leases [Table Text Block]

The following table sets forth the location and amount of operating lease costs included in the Company's consolidated statement of income:

	Three Months Ended September 30,				Six Months Ended September 30,
(in thousands of dollars)	2020		2019		2020		2019
Income Statement Location
Cost of goods sold	$	3,219	$	2,591	$	6,130	$	5,209
Selling, general, and administrative expenses	2,466		2,064		4,656		4,050
Total operating lease costs(1)	$	5,685	$	4,655	$	10,786	$	9,259

(1)Includes variable operating lease costs.

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

The following table reconciles the undiscounted cash flows to the operating lease liabilities in the Company’s consolidated balance sheet:

(in thousands of dollars)	September 30, 2020
Maturity of Operating Lease Liabilities
2021(excluding the six months ended September 30, 2020)	$	5,773
2022	7,906
2023	6,450
2024	4,978
2025	4,098
2026 and thereafter	7,032
Total undiscounted cash flows for operating leases	$	36,237
Less: Imputed interest	(4,319)
Total operating lease liabilities	$	31,918

Supplemental information related to operating leases [Table Text Block]

The following table sets forth supplemental information related to operating leases:

	Three Months Ended September 30,				Six Months Ended September 30,
(in thousands, except lease term and incremental borrowing rate)	2020		2019		2020			2019
Supplemental Cash Flow Information
Cash paid for amounts included in the measurement of operating lease liabilities	$	3,159	$	4,213	$	6,187		$	7,259
Right-of-use assets obtained in exchange for new operating leases	567		3,633		1,590			4,101
Weighted Average Remaining Lease Term (years)					5.55			6.15
Weighted Average Collateralized Incremental Borrowing Rate					4.02		%	4.75		%