Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Lease, Cost [Table Text Block]

The components of lease expense were as follows:

	Year Ended December 31,
	2021		2020		2019
Operating lease expense	$	31,912	$	32,053	$	33,360
Short-term lease expense	6,736		5,069		3,557
Variable lease expense	907		942		1,619
Finance lease expense:
Amortization of right-of-use assets	2,102		2,564		2,550
Interest on lease liabilities	1,444		1,551		1,438
Total lease expense	$	43,101	$	42,179	$	42,524

Cash Flow, Supplemental Disclosures [Text Block]

Other information related to leases was as follows:

	Year Ended December 31,
	2021			2020			2019
Supplemental Cash Flows Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	33,402		$	30,830		$	34,235
Operating cash flows for finance leases	1,440			1,563			1,438
Financing cash flows for finance leases	2,133			2,081			1,284
Non-cash right-of-use assets obtained in exchange for lease obligations:
Operating leases	25,010			50,663			11,143
Finance leases	644			549			22,671
Weighted Average Remaining Lease Term (in years)
Operating leases	7.5			8.0			5.2
Finance leases	9.7			10.5			11.3
Weighted Average Discount Rate
Operating leases	5.9		%	5.4		%	4.7		%
Finance leases	5.8		%	5.7		%	6.1		%

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future minimum lease payments under non-cancellable leases as of December 31, 2021 were as follows:

Year	Operating Leases		Finance Leases
2022	$	28,267	$	3,281
2023	23,948		3,207
2024	17,492		3,445
2025	14,722		3,494
2026	11,076		3,206
Thereafter	48,879		17,343
Total future minimum lease payments	144,384		33,976
Less imputed interest	(29,072)		(8,233)
Total	$	115,312	$	25,743