Leases Leases (Tables)

3 Months Ended

Mar. 31, 2021

Leases [Abstract]

Lease, Cost [Table Text Block]

The components of lease expense are as follows (dollars in thousands):

	Three months ended March 31,
	2021		2020
Operating lease cost	$	2,140	$	1,650
Short-term, variable and other lease costs	430		310
Total lease cost	$	2,570	$	1,960

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

Maturities of lease liabilities are as follows (dollars in thousands):

Year ended December 31,	Operating Leases(a)
2021 (excluding the three months ended March 31, 2021)	$	5,710
2022	7,300
2023	6,450
2024	5,560
2025	4,390
Thereafter	12,620
Total lease payments	42,030
Less: Imputed interest	(5,160)
Present value of lease liabilities	$	36,870

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(a)     The maturity table excludes cash flows associated with exited lease facilities. Liabilities for exited lease facilities are included in accrued liabilities and other long-term liabilities in the accompanying consolidated balance sheet.