Leases - Maturities of Operating and Financing Lease Liabilities (Details)	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating Lease, Right-of-Use Asset, Gross	$ 21,116,000
Operating Lease, Cost	5,071,000
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	(17,625,000)
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	3,994,000
Finance Lease, Liability, Payments, Remainder of Fiscal Year	526,000
Leases, Liability, Payments, Remainder of Fiscal Year	4,520,000
Lessee, Operating Lease, Liability, Payments, Due Year Two	3,338,000
Finance Lease, Liability, Payments, Due Year Two	526,000
Lease, Liability, Payments, Due Year Two	3,864,000
Lessee, Operating Lease, Liability, Payments, Due Year Three	2,994,000
Finance Lease, Liability, Payments, Due Year Three	515,000
Lease, Liability, Payments, Due Year Three	3,509,000
Lessee, Operating Lease, Liability, Payments, Due Year Four	2,272,000
Finance Lease, Liability, Payments, Due Year Four	515,000
Lease, Liability, Payments, Due Year Four	2,787,000
Lessee, Operating Lease, Liability, Payments, Due Year Five	1,761,000
Finance Lease, Liability, Payments, Due Year Five	499,000
Lease, Liability, Payments, Due Year Five	2,260,000
Lessee, Operating Lease, Liability, Payments, Due after Year Five	6,834,000
Finance Lease, Liability, Payments, Due after Year Five	942,000
Lease, Liability, Payments, Due after Year Five	7,776,000
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(3,834,000)
Finance Lease, Liability, Undiscounted Excess Amount	(275,000)
Lease, Liability, Undiscounted Excess Amount	(4,109,000)
Operating Lease, Liability	17,359,000
Finance Lease, Liability	3,248,000
Lease, Liability	20,607,000
Finance Lease, Right-of-Use Asset, Amortization	251,000
Increase (Decrease) In Operating Lease Liabilities	17,359,000
Operating Lease, Payments	(4,301,000)
Net Cash Provided by (Used in) Operating Activities Related to Leases	(4,316,000)
Finance Lease, Principal Payments	(281,000)
Finance Lease, Interest Payment on Liability	40,000
Finance Lease, Interest Expense	40,000
Finance Lease, Cost	291,000
Lease, Cost	5,362,000
Finance Lease, Right-of-Use Asset, Gross	3,527,000
Operating Lease, Right-of-Use Asset, Amortization	(3,492,000)
Finance Lease, Right-of-Use Asset, Accumulated Amortization	(338,000)
Operating Lease, Right-of-Use Asset	17,624,000
Finance Lease, Right-of-Use Asset	3,189,000
Operating Lease, Liability, Current	3,042,000
Finance Lease, Liability, Current	504,000
Operating Lease, Liability, Noncurrent	14,317,000
Finance Lease, Liability, Noncurrent	$ 2,744,000