Revenue Recognition (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Document Period End Date	Dec. 31, 2019
Revenue, Remaining Performance Obligation, Amount	$ 407.8
Trade accounts receivable, less allowance for doubtful accounts of $3,086 and $2,270, respectively	125,422,000
Contract with Customer, Asset, after Allowance for Credit Loss	46,912,000	$ 52,781,000
Contract with Customer, Liability	35,007,000	41,951,000
Penalty Accruals	1,800,000	2,000,000.0
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Trade accounts receivable, less allowance for doubtful accounts of $3,086 and $2,270, respectively		$ 167,181,000
Increase (Decrease) in Accounts and Other Receivables	(41,759,000)
Contract with Customer, Asset, Period Increase (Decrease)	5,869,000
Contract with Customer, Liability, Period Increase (Decrease)	$ (6,944,000)