Acquisition - United Steel Supply (Schedule of Assets Acquired and Liabilities Assumed) (Details) - United Steel Supply, LLC - USD ($) $ in Thousands	Sep. 30, 2019	Mar. 01, 2019
Acquisition
Current assets, net of cash acquired		$ 94,020
Property, plant & equipment		7,388
Intangible assets and goodwill		101,918
Total assets acquired		203,326
Liabilities assumed		81,224
Redeemable noncontrolling interest		28,690
Net cash consideration		$ 93,412
Scenario Previously Reported [Member]
Acquisition
Current assets, net of cash acquired	$ 86,236
Property, plant & equipment	7,388
Intangible assets and goodwill	113,810
Total assets acquired	207,434
Liabilities assumed	77,954
Redeemable noncontrolling interest	32,374
Net cash consideration	97,106
Restatement Adjustment [Member]
Acquisition
Current assets, net of cash acquired	(7,784)
Intangible assets and goodwill	11,892
Total assets acquired	4,108
Liabilities assumed	(3,270)
Redeemable noncontrolling interest	3,684
Net cash consideration	$ 3,694