Leases Leases (Tables)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Lease, Cost [Table Text Block]

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

	Three months ended September 30,				Nine months ended September 30,
	2021		2020		2021		2020
Operating lease cost	$	2,090	$	2,110	$	6,370	$	5,780
Short-term, variable and other lease costs	1,140		410		2,000		990
Total lease cost	$	3,230	$	2,520	$	8,370	$	6,770

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 nine months ended September, 2021)	$	2,060
2022	7,990
2023	7,160
2024	6,160
2025	4,840
Thereafter	15,740
Total lease payments	43,950
Less: Imputed interest	(5,490)
Present value of lease liabilities	$	38,460

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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.