Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Revenue:	$ 347,900	$ 355,813
Income (loss) from continuing operations before interest expense and income taxes:	(31,573)	32,969
Interest expense	8,315	10,205
Income tax (benefit) provision	(3,429)	3,002
Net (loss) income from continuing operations	(36,459)	19,762
Total	34,507	(9,381)
Depreciation and amortization	16,235	16,231
Diversified industrial net sales
Segment Reporting Information [Line Items]
Revenue:	262,300	280,921
Income (loss) from continuing operations before interest expense and income taxes:	14,874	15,045
Depreciation and amortization	12,267	11,654
Energy net revenue
Segment Reporting Information [Line Items]
Revenue:	38,602	38,986
Income (loss) from continuing operations before interest expense and income taxes:	202	(1,755)
Depreciation and amortization	3,756	4,445
Financial services revenue
Segment Reporting Information [Line Items]
Revenue:	46,998	35,906
Income (loss) from continuing operations before interest expense and income taxes:	4,006	13,232
Depreciation and amortization	171	98
Corporate and other
Segment Reporting Information [Line Items]
Income (loss) from continuing operations before interest expense and income taxes:	(50,655)	6,447
Total	34,507	(9,381)
Depreciation and amortization	$ 41	$ 34