The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment	$ 1,470,000	$ 0	$ 0
Intangible asset amortization	3,948	$ 4,153	$ 4,870
Aggregate amortization expense 2021	10,800
Aggregate amortization expense 2022	7,400
Aggregate amortization expense 2023	3,800
Aggregate amortization expense 2024	$ 1,700
Scenario, Forecast
Finite-Lived Intangible Assets [Line Items]
Intangible asset amortization				$ 14,800