Steel Partners (SPLP) 10-Q 8 Aug 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 07, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	STEEL PARTNERS HOLDINGS L.P.
Entity Central Index Key	0001452857
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		25,011,142

Consolidated Balance Sheets (un

Consolidated Balance Sheets (unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 206,171	$ 334,884
Restricted cash	0	12,434
Marketable securities	1,439	1,439
Trade and other receivables - net of allowance for doubtful accounts of $3,047 and $2,885, respectively	254,398	209,543
Receivables from related parties	1,645	425
Loans receivable, including loans held for sale of $178,071 and $188,143, respectively, net	405,438	341,890
Inventories, net	163,294	158,850
Prepaid expenses and other current assets	40,343	32,826
Total current assets	1,072,728	1,092,291
Long-term loans receivable, net	213,289	164,375
Goodwill	192,191	183,945
Other intangible assets, net	172,901	183,541
Deferred tax assets	84,356	96,040
Other non-current assets	88,325	80,356
Property, plant and equipment, net	291,492	297,467
Operating lease right-of-use assets	44,697
Long-term investments	299,446	258,044
Total Assets	2,459,425	2,356,059
Current liabilities:
Accounts payable	113,802	106,261
Accrued liabilities	153,764	120,043
Financial instruments	0	12,434
Deposits	570,155	431,959
Payables to related parties	1,058	248
Short-term debt	4,458	3,094
Current portion of long-term debt	10,742	799
Current portion of preferred unit liability	38,374	0
Other current liabilities	28,074	21,943
Total current liabilities	920,427	696,781
Long-term deposits	180,976	279,352
Long-term debt	443,532	478,096
Preferred unit liability	144,162	180,340
Accrued pension liabilities	194,339	205,770
Deferred tax liabilities	3,202	2,225
Long-term operating lease liabilities	34,516
Other non-current liabilities	15,860	20,987
Total Liabilities	1,937,014	1,863,551
Commitments and Contingencies
Capital:
Partners' capital common units: 25,011,142 and 25,294,003 issued and outstanding (after deducting 12,647,864 and 12,142,528 units held in treasury, at cost of $198,781 and $192,060), respectively	696,420	666,031
Accumulated other comprehensive loss	(177,645)	(177,244)
Total Partners' Capital	518,775	488,787
Noncontrolling interests in consolidated entities	3,636	3,721
Total Capital	522,411	492,508
Total Liabilities and Capital	$ 2,459,425	$ 2,356,059

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 3,047	$ 2,885
Loans held for sale	$ 178,071	$ 188,143
Common units issued (in shares)	25,011,142	25,294,003
Common units outstanding (in shares)	25,011,142	25,294,003
Common units held in treasury (in shares)	12,647,864	12,142,528
Common units held in treasury, at cost	$ 198,781	$ 192,060

Consolidated Statements of Inco

Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue:
Total revenue	$ 414,203	$ 434,437	$ 801,256	$ 800,682
Costs and expenses:
Cost of goods sold	278,930	299,258	545,691	561,119
Selling, general and administrative expenses	102,345	88,183	190,709	176,565
Asset impairment charges	190		190	0
Finance interest expense	4,201	2,332	8,125	4,110
Provision for loan losses	12,715	4,205	21,185	7,023
Interest expense	10,955	9,590	21,763	17,699
Realized and unrealized (gains) losses on securities, net	(36,377)	11,824	(38,486)	25,613
Other (income) expense, net	(1,626)	(529)	7	(1,545)
Total costs and expenses	371,333	414,863	749,184	790,584
Income before income taxes and equity method investments	42,870	19,574	52,072	10,098
Income tax provision	14,718	7,606	17,679	8,936
Loss (income) of associated companies, net of taxes	7,118	(1,587)	(2,263)	(3,542)
Net income	21,034	13,555	36,656	4,704
Net loss (income) attributable to noncontrolling interests in consolidated entities	29	(513)	85	(740)
Net income attributable to common unitholders	$ 21,063	$ 13,042	$ 36,741	$ 3,964
Net income per common unit - basic
Net income attributable to common unitholders (in dollars per share)	$ 0.84	$ 0.50	$ 1.47	$ 0.15
Net income per common unit - diluted
Net income attributable to common unitholders (in dollars per share)	$ 0.61	$ 0.42	$ 1.09	$ 0.15
Weighted-average number of common units outstanding - basic (in shares)	24,982,728	26,147,125	24,915,446	26,205,290
Weighted-average number of common units outstanding - diluted (in shares)	39,138,599	37,668,025	39,158,510	26,239,583
Diversified industrial net sales
Revenue:
Total revenue	$ 328,537	$ 358,398	$ 640,698	$ 666,016
Energy net revenue
Revenue:
Total revenue	43,532	47,073	82,518	83,665
Financial services revenue
Revenue:
Total revenue	$ 42,134	$ 28,966	$ 78,040	$ 51,001

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 21,034	$ 13,555	$ 36,656	$ 4,704
Other comprehensive (loss) income, net of tax:
Gross unrealized (losses) gains on derivative financial instruments	(425)	115	93	300
Currency translation adjustments	(1,797)	(4,087)	(494)	(783)
Other comprehensive loss	(2,222)	(3,972)	(401)	(483)
Comprehensive income	18,812	9,583	36,255	4,221
Comprehensive income attributable to noncontrolling interests	0	(273)	0	(721)
Comprehensive income attributable to common unitholders	18,812	9,310	36,255	3,500
Tax (benefit) provision on gross unrealized (losses) gains on derivative financial instruments	(90)	23	2	55
Tax benefit on currency translation adjustments	$ 0	$ (55)	$ 0	$ (19)

Consolidated Statement of Chang

Consolidated Statement of Changes in Capital (unaudited) - USD ($) $ in Thousands		Jan. 01, 2018	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year (in shares)				25,294,003			25,294,003
Balance at beginning of year		$ 540,172	$ 503,394	$ 492,508	$ 531,711	$ 540,172	$ 492,508	$ 540,172
Net income (loss)			21,034	15,622	13,555	(8,851)	$ 36,656	4,704
Unrealized gains on derivative financial instruments			(425)	518	115	185
Currency translation adjustments			(1,797)	1,303	(4,087)	3,304
Equity compensation - restricted units			227	164	221	149
Purchases of SPLP common units				(6,721)	(3,065)	(3,595)
Other, net			$ (22)		104	(286)
Cumulative effect of adopting ASU 2016-01 relating to net unrealized gains and losses on equity securities	[1]					0
Purchases of subsidiary shares from noncontrolling interests					(13,278)	(401)
Units issued in the acquisition of WFHC noncontrolling interests					3,159
Balance at end of period (in shares)			25,011,142				25,011,142
Balance at end of year			$ 522,411	503,394	528,435	531,711	$ 522,411	528,435
Total Partners' Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		$ 519,239	499,729	488,787	509,991	519,239	488,787	519,239
Net income (loss)			21,063	15,678	13,042	(9,078)
Unrealized gains on derivative financial instruments			(425)	518	104	170
Currency translation adjustments			(1,797)	1,303	(3,841)	3,098
Equity compensation - restricted units			227	164	221	149
Purchases of SPLP common units				(6,721)	(3,065)	(3,595)
Other, net			(22)		109	(286)
Purchases of subsidiary shares from noncontrolling interests					1,966	(740)
Units issued in the acquisition of WFHC noncontrolling interests					3,159
Balance at end of year			$ 518,775	$ 499,729	$ 521,686	$ 509,991	$ 518,775	$ 521,686
Common Units
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year (in shares)		37,216,787	37,606,531	37,436,531	37,216,787	37,216,787	37,436,531	37,216,787
Equity compensation - restricted units (in shares)			52,475	170,000	22,351
Units issued in the acquisition of WFHC noncontrolling interests (in shares)					185,407
Balance at end of period (in shares)			37,659,006	37,606,531	37,424,545	37,216,787	37,659,006	37,424,545
Treasury Units
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year (in shares)		10,868,367	12,647,864	12,142,528	11,052,644	10,868,367	12,142,528	10,868,367
Balance at beginning of year		$ (170,858)	$ (198,781)	$ (192,060)	$ (174,453)	$ (170,858)	$ (192,060)	$ (170,858)
Purchases of SPLP common units (in shares)				(505,336)	(179,438)	(184,277)
Purchases of SPLP common units				$ (6,721)	$ (3,065)	$ (3,595)
Balance at end of period (in shares)			12,647,864	12,647,864	11,232,082	11,052,644	12,647,864	11,232,082
Balance at end of year			$ (198,781)	$ (198,781)	$ (177,518)	$ (174,453)	$ (198,781)	$ (177,518)
Partners' Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		625,406	675,152	666,031	703,968	625,406	666,031	625,406
Net income (loss)			21,063	15,678	13,042	(9,078)
Equity compensation - restricted units			227	164	221	149
Purchases of SPLP common units				(6,721)	(3,065)	(3,595)
Other, net			(22)		104	(286)
Cumulative effect of adopting ASU 2016-01 relating to net unrealized gains and losses on equity securities	[1]					91,078
Purchases of subsidiary shares from noncontrolling interests					2,541	(740)
Units issued in the acquisition of WFHC noncontrolling interests					3,159
Balance at end of year			696,420	675,152	719,970	703,968	696,420	719,970
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		(106,167)	(175,423)	(177,244)	(193,977)	(106,167)	(177,244)	(106,167)
Unrealized gains on derivative financial instruments			(425)	518	104	170
Currency translation adjustments			(1,797)	1,303	(3,841)	3,098
Other, net					5
Cumulative effect of adopting ASU 2016-01 relating to net unrealized gains and losses on equity securities	[1]					(91,078)
Purchases of subsidiary shares from noncontrolling interests					(575)
Balance at end of year			(177,645)	(175,423)	(198,284)	(193,977)	(177,645)	(198,284)
Noncontrolling Interests in Consolidated Entities
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		20,933	3,665	3,721	21,720	20,933	3,721	20,933
Net income (loss)			(29)	(56)	513	227
Unrealized gains on derivative financial instruments					11	15
Currency translation adjustments					(246)	206
Other, net					(5)
Purchases of subsidiary shares from noncontrolling interests					(15,244)	339
Balance at end of year			$ 3,636	$ 3,665	$ 6,749	21,720	$ 3,636	6,749
Accounting Standards Update 2014-09
Increase (Decrease) in Partners' Capital [Roll Forward]
Cumulative effect of adopting ASC 606 relating to revenue recognition	[2]					1,034
Increase partners' capital		1,034
Accounting Standards Update 2014-09 | Total Partners' Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Cumulative effect of adopting ASC 606 relating to revenue recognition	[2]					1,034
Accounting Standards Update 2014-09 | Partners' Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Cumulative effect of adopting ASC 606 relating to revenue recognition	[2]					1,034
Previously Reported
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		567,036				567,036		567,036
Previously Reported | Total Partners' Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		$ 546,103				$ 546,103		$ 546,103
Previously Reported | Common Units
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year (in shares)		37,216,787				37,216,787		37,216,787
Previously Reported | Treasury Units
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year (in shares)		10,868,367				10,868,367		10,868,367
Balance at beginning of year		$ (170,858)				$ (170,858)		$ (170,858)
Previously Reported | Partners' Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		652,270				652,270		652,270
Previously Reported | Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		(106,167)				(106,167)		(106,167)
Previously Reported | Noncontrolling Interests in Consolidated Entities
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		20,933				20,933		20,933
Adjustment For Tax Basis | Restatement Adjustment
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		(26,864)				(26,864)		(26,864)
Adjustment For Tax Basis | Restatement Adjustment | Total Partners' Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		(26,864)				(26,864)		(26,864)
Adjustment For Tax Basis | Restatement Adjustment | Partners' Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Balance at beginning of year		$ (26,864)				$ (26,864)		$ (26,864)
[1]	Effective January 1, 2018 upon adoption of Accounting Standards Update No. 2016-01, a cumulative effect reclassification adjustment was made to remove the net unrealized gains and losses on equity securities from Accumulated other comprehensive loss and reclassify them to Partners' capital.
[2]	Effective January 1, 2018, the Company adopted Accounting Standards Codification 606 for all contracts with customers using the modified retrospective transition approach. The Company recognized a net increase of $1,034 to Partners' capital due to the cumulative impact of adopting Accounting Standards Codification 606.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 36,656	$ 4,704
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for loan losses	21,185	7,023
Income of associated companies, net of taxes	(2,263)	(3,542)
Realized and unrealized (gains) losses on securities, net	(38,486)	25,613
Derivative gains on economic interests in loans	(6,677)	(7,365)
Deferred income taxes	12,638	3,936
Depreciation and amortization	35,391	38,321
Non-cash lease expense	5,751
Equity-based compensation	391	370
Other	2,321	1,398
Net change in operating assets and liabilities:
Trade and other receivables	(44,580)	(48,256)
Inventories	(4,341)	(6,749)
Prepaid expenses and other assets	(5,113)	(1,892)
Accounts payable, accrued and other liabilities	22,655	3,462
Net decrease (increase) in loans held for sale	10,072	(22,153)
Net cash provided by (used in) operating activities	45,600	(5,130)
Cash flows from investing activities:
Purchases of investments	(62,750)	(119,507)
Proceeds from sales of investments	0	46,027
Proceeds from maturities of investments	51,656	17,467
Loan originations, net of collections	(106,523)	(99,015)
Purchases of property, plant and equipment	(18,180)	(21,979)
Proceeds from sales of assets	303	3,910
Settlement of short sales of corporate securities	(14,611)	0
Acquisitions, net of cash acquired	(45,559)	(67,123)
Other	0	438
Net cash used in investing activities	(195,664)	(239,782)
Cash flows from financing activities:
Net revolver (repayments) borrowings	(22,120)
Net revolver (repayments) borrowings		81,986
Net repayments of term loans	(1,160)	(563)
Purchases of the Company's common units	(6,721)	(6,660)
Purchase of subsidiary shares from noncontrolling interests	0	(10,666)
Deferred finance charges	(815)	(1,042)
Net increase in deposits	39,820	85,644
Other	0	137
Net cash provided by financing activities	9,004	148,836
Net change for the period	(141,060)	(96,076)
Effect of exchange rate changes on cash and cash equivalents	(87)	(7)
Cash, cash equivalents and restricted cash at beginning of period	347,318	434,384
Cash, cash equivalents and restricted cash at end of period	$ 206,171	$ 338,301

Nature of the Business and Basi

Nature of the Business and Basis of Presentation	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of the Business and Basis of Presentation	NATURE OF THE BUSINESS AND BASIS OF PRESENTATION Nature of the Business Steel Partners Holdings L.P. ("SPLP" or "Company") is a diversified global holding company that engages in multiple businesses through consolidated subsidiaries and other interests. It owns and operates businesses and has significant interests in companies in various industries, including diversified industrial products, energy, defense, supply chain management and logistics, direct marketing, banking and youth sports. SPLP operates through the following segments: Diversified Industrial, Energy, Financial Services, and Corporate and Other, which are managed separately and offer different products and services. For additional details related to the Company's reportable segments see Note 18 - "Segment Information." Steel Partners Holdings GP Inc. ("SPH GP"), a Delaware corporation, is the general partner of SPLP and is wholly-owned by SPLP. The Company is managed by SP General Services LLC ("Manager"), pursuant to the terms of an amended and restated management agreement ("Management Agreement") discussed in further detail in Note 17 - "Related Party Transactions." Basis of Presentation The accompanying unaudited consolidated financial statements as of June 30, 2019 and for the three and six month periods ended June 30, 2019 and 2018 , which have been prepared by the Company in accordance with the rules and regulations of the Securities and Exchange Commission for interim periods, include the accounts of the Company and its consolidated subsidiaries. In the opinion of management, all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation have been reflected herein. The results of operations for the three and six months ended June 30, 2019 are not necessarily indicative of the operating results for the full year. The accompanying unaudited consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements on Form 10-K for the year ended December 31, 2018, from which the consolidated balance sheet as of December 31, 2018 has been derived. Certain financial information that is normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles, but is not required for interim reporting purposes, has been condensed or omitted. Management must make estimates and assumptions that affect the consolidated financial statements and the related footnote disclosures. While management uses its best judgment, actual results may differ from those estimates. Certain reclassifications have been made to the prior period financial statements and notes to conform to the current period presentation. During the second quarter of 2019 , the Company became aware of a misstatement related to its January 2015 sale of Arlon, LLC, whereby the tax basis of Arlon, LLC at the time of sale was calculated incorrectly. The misstatement was discovered in connection with an Internal Revenue Service ("IRS") examination of the Company's 2015 income tax filing. The accompanying consolidated statements of changes in capital have been adjusted to decrease the opening balance of Partners' capital as of December 31, 2017 by $26,864 , with a corresponding increase to Other current liabilities at December 31, 2018. The adjustment includes the IRS' expected assessment for this matter, as well as associated state taxes and interest. The Company also recorded related interest expense within our Income tax provision of $1,456 as an out-of-period adjustment in the accompanying consolidated statement of income for the three months ended June 30, 2019 . The adjustments recorded represent the Company's current best estimate of its potential liability, however, the Company continues to discuss this matter with the IRS, and any assessment may be subject to appeal. The accompanying footnotes affected by the correction of this misstatement have been revised, and the correction of this misstatement had no effect on the Company's consolidated statements of cash flows. During the first quarter of 2018, the Company corrected an out-of-period misstatement related to the increase in the fair value of the Company's investment in Steel Connect, Inc. ("STCN") preferred stock for the period from December 15, 2017 to December 31, 2017. Had this correction been recorded as of December 31, 2017, Income of associated companies, net of taxes and Net income for the six months ended June 30, 2018 would have changed to losses of $7,666 and $6,504 , respectively. New or Recently Adopted Accounting Pronouncements In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update No. ("ASU") 2016-02, Leases (Topic 842) . Topic 842 is effective for public companies for annual reporting periods beginning after December 15, 2018, including interim periods within those fiscal years. The new standard establishes a right-of-use ("ROU") model that requires a lessee to record a ROU asset and a lease liability, measured on a discounted basis, on the balance sheet for all leases with terms longer than 12 months. Leases are classified as either finance or operating, with classification affecting the pattern of expense recognition in the statement of income. Originally, entities were required to adopt ASU 2016-02 using a modified retrospective approach, which required prior periods to be presented under this new standard with certain practical expedients available. However, in July 2018, the FASB issued ASU 2018-11, Leases (Topic 842): Targeted Improvements , which allows entities the option of recognizing the cumulative effect of applying the new standard as an adjustment to the opening balance of retained earnings in the year of adoption while continuing to present all prior periods under previous lease accounting guidance. The Company adopted Topic 842 as of January 1, 2019 using the alternative modified transition approach. The Company elected to use the package of practical expedients permitted under the transition guidance, including carryforward of our historical lease classification, no reassessment of whether an expired or existing contract contains an embedded lease, no reassessment of initial direct costs for any leases that existed prior to the date of adoption of the new standard, and to consolidate lease and non-lease components. As a result of the adoption of Topic 842, we recorded a ROU asset and lease liability of $45,357 and $46,024 , respectively, on January 1, 2019. The Company did not record a cumulative effect adjustment to the opening balance of Partners' capital upon the adoption of Topic 842. For additional information, see Note 3 - "Leases." In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This new standard changes the impairment model for most financial assets that are measured at amortized cost and certain other instruments, including trade receivables, from an incurred loss model to an expected loss model and adds certain new required disclosures. Under the expected loss model, entities will recognize estimated credit losses over the entire contractual term of the instrument rather than delaying recognition of credit losses until it is probable the loss has been incurred. In May 2019, the FASB issued ASU 2019-05, Financial Instruments-Credit Losses (Topic 326): Targeted Transition Relief. ASU 2019-05 provides entities with an option to irrevocably elect the fair value option, applied on an instrument-by-instrument basis for eligible instruments, that are within the scope of Subtopic 326-20, upon the adoption of Topic 326. The fair value option election does not apply to held-to-maturity debt securities. The new standards are effective for the Company's 2020 fiscal year with early adoption permitted for all entities in fiscal years beginning after December 15, 2018. The Company is currently evaluating the potential impact of this new guidance; however, it expects that it could have a significant impact on the Company's allowance for loan losses ("ALLL"). In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . This new standard simplifies subsequent measurements of goodwill by eliminating Step 2 from the goodwill impairment test. Instead, entities will perform their interim or annual goodwill impairment testing by comparing the fair value of a reporting unit with its carrying amount and recognizing an impairment charge based on the amount that the carrying amount exceeds the reporting unit's fair value. The loss recognized should not exceed the total goodwill allocated to the reporting unit. The Company has elected to early adopt this standard as of January 1, 2019; such adoption did not have an impact on the Company's consolidated financial statements. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities . The Company adopted ASU 2017-12 on January 1, 2019. The new standard includes amendments to enhance presentation and disclosures, including eliminating the separate measurement and reporting of hedge ineffectiveness, generally requiring the entire effect of the hedging instrument and hedged item to be presented in the same income statement line item. Amendments in the new standard to reduce the complexity of applying certain aspects of hedge accounting include giving entities additional time to complete certain aspects of their hedge documentation, expanding the nature of hedging relationships that can be subsequently assessed for hedge effectiveness on a qualitative basis, if elected, and simplifying the application of the critical terms match and shortcut methods. Certain aspects of the new standard are applied on a modified retrospective basis including recording a cumulative-effect adjustment in the opening balance of retained earnings for cash flow and net investment hedges, to eliminate the separate measurement of ineffectiveness, if any, to accumulated other comprehensive income or loss ("AOCI") with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year of adoption. The amended presentation and disclosure guidance is required on a prospective basis. The standard also provides a number of one-time transition elections that entities may choose to apply to certain existing hedging relationships without having to de-designate and re-designate the hedging relationship. The Company has elected to continue recording amounts excluded from the assessment of hedge effectiveness in earnings rather than using an amortization approach. For additional details on the Company's derivatives and hedging activities, see Note 10 - "Financial Instruments." In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The new standard provides financial statement preparers with an option to reclassify any stranded tax effects resulting from the Federal Tax Cuts and Jobs Act from AOCI to retained earnings. The amendments in ASU 2018-02 are effective beginning after December 15, 2018, and interim periods within those fiscal years. The Company adopted ASU 2018-02 on January 1, 2019 and elected not to reclassify stranded tax effects. In June 2018, the FASB issued ASU 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting . This new standard provides guidance on how to account for share-based payment transactions with nonemployees in which a grantor acquires goods or services to be used or consumed in the grantor's own operations by issuing equity-based payment awards. The new standard is effective for public companies for annual reporting periods beginning after December 15, 2018, including interim periods within those fiscal years. The Company adopted ASU 2018-07 on January 1, 2019. The adoption did not have an impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement. ASU 2018-13 modifies the disclosure requirements on fair value measurements. The amendments in ASU 2018-13 are effective for the Company's 2020 fiscal year, except that the standard permits an entity to early adopt any removed or modified disclosures upon issuance of ASU No. 2018-13 and delay adoption of the additional disclosures until the effective date. Because ASU 2018-13 affects disclosure only, management does not expect that the full adoption of this standard will have a material impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans. ASU 2018-14 modifies the disclosure requirements for employers that sponsor defined benefit pension and other post-retirement plans. The amendments in ASU 2018-14 are effective for the Company's 2021 fiscal year. Because ASU 2018-14 affects disclosure only, management does not expect that the adoption of this standard will have a material impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force) to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). The amendments in ASU 2018-15 are effective for the Company's 2020 fiscal year. The Company adopted ASU 2018-15 on April 1, 2019. The adoption did not have a material impact on the Company's consolidated financial statements.

Revenues

Revenues	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenues	REVENUES Disaggregation of Revenues Revenues are disaggregated at the Company's segment level since the segment categories depict how the nature, amount, timing and uncertainty of revenues and cash flows are affected by economic factors. For additional details related to the Company's reportable segments, see Note 18 - "Segment Information." The following table presents the Company's revenues disaggregated by geography for the three and six months ended June 30, 2019 and 2018 . The Company's revenues are primarily derived domestically. Foreign revenues are based on the country in which the legal subsidiary generating the revenue is domiciled. Revenue from any single foreign country was not material to the Company's consolidated financial statements. Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 United States $ 374,650 $ 374,580 $ 719,739 $ 682,520 Foreign (a) 39,553 59,857 81,517 118,162 Total revenue $ 414,203 $ 434,437 $ 801,256 $ 800,682 (a) Foreign revenues are primarily related to the Company's API Group plc and Dunmore Europe GmbH businesses, which are domiciled in the United Kingdom and Germany, respectively. Contract Balances The timing of revenue recognition, billings and cash collections results in billed trade receivables, unbilled receivables (contract assets) and deferred revenue (contract liabilities) on the consolidated balance sheets. Contract Assets Unbilled receivables arise when the timing of billings to customers differs from the timing of revenue recognition, such as when the Company recognizes revenue over time before a customer can be billed. Contract assets are classified as Prepaid expenses and other current assets on the consolidated balance sheets. As of June 30, 2019 and December 31, 2018, the contract asset balance was $9,161 and $8,969 , respectively. Contract Liabilities The Company records deferred revenues when cash payments are received or due in advance of the Company's performance, including amounts that are refundable, which are recorded as contract liabilities. Contract liabilities are classified as Other current liabilities on the consolidated balance sheets, based on the timing of when the Company expects to recognize revenue. As of June 30, 2019 and December 31, 2018, the contract liability was $7,779 and $5,900 , respectively. The increase in the six months ended June 30, 2019 was primarily due to deferral of revenue of $10,916 offset by the recognition of $7,543 of unearned revenue.

Leases

Leases	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Leases	LEASES The Company determines if an agreement qualifies as a lease or contains a lease in the period that the agreement is executed. ROU assets represent our right to use an underlying asset for the entirety of the lease term. Lease liabilities represent the Company's obligation to make payments over the life of the lease. A ROU asset and a lease liability are recognized at commencement of the lease based on the present value of the lease payments over the life of the lease. Since the interest rate implicit in a lease is generally not readily determinable, we use an incremental borrowing rate to determine the present value of the lease payments. The incremental borrowing rate represents the rate of interest the Company would have to pay to borrow on a collateralized basis over a similar lease term to obtain an asset of similar value. Our lease terms may include options to extend or terminate the lease when the Company is reasonably certain that we will exercise that option. Initial direct costs are included as part of the ROU asset upon commencement of the lease. The Company has applied the practical expedient available for lessees in which lease and non-lease components are accounted for as a single lease component for all of our asset classes. We also elected the practical expedient to exclude short-term leases (leases with original terms of 12 months or less) from our ROU asset and lease liability accounts. The Company has operating and finance leases for operating plants, warehouses, corporate offices, housing facilities, vehicles and equipment. Our leases have remaining lease terms of up to 54 years. The components of lease cost are as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease cost $ 3,300 $ 6,667 Short-term lease cost $ 225 $ 531 Finance lease cost: Amortization of right-of-use assets $ 270 $ 520 Interest on lease liabilities 67 128 Total finance lease cost $ 337 $ 648 Supplemental cash flow information related to leases is as follows: Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6,640 Operating cash flows from finance leases $ 128 Financing cash flows from finance leases $ 656 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 6,078 Finance leases $ 3,731 Supplemental balance sheet information related to leases is as follows: June 30, 2019 Location on Consolidated Balance Sheet Operating leases Operating lease right-of-use assets $ 44,697 Operating lease right-of-use assets Current operating lease liabilities $ 10,875 Other current liabilities Non-current operating lease liabilities 34,516 Long-term operating lease liabilities Total operating lease liabilities $ 45,391 Finance leases Finance lease assets $ 9,880 Property, plant and equipment, net Current finance lease liabilities $ 1,724 Other current liabilities Non-current finance lease liabilities 7,620 Other non-current liabilities Total finance lease liabilities $ 9,344 Weighted-average remaining lease term Operating leases 8.32 years Finance leases 5.28 years Weighted-average discount rate Operating leases 4.58 % Finance leases 4.20 % Future minimum operating lease obligations prior to the adoption of Topic 842, as of December 31, 2018 , were as follows: Payments Due by Period Amount 2019 $ 14,280 2020 11,131 2021 8,975 2022 6,174 2023 3,863 Thereafter 17,867 Total $ 62,290 Maturities of lease liabilities after the adoption of Topic 842, as of June 30, 2019 , are as follows: Operating Leases Finance Leases 2019 (excluding the six months ended June 30, 2019) $ 7,535 $ 1,047 2020 10,952 1,961 2021 8,793 1,877 2022 7,111 1,762 2023 5,116 1,744 Thereafter 17,556 2,062 Total lease payments 57,063 10,453 Present value of current lease liabilities 10,875 1,724 Present value of long-term lease liabilities 34,516 7,620 Total present value of lease liabilities 45,391 9,344 Difference between undiscounted cash flows and discounted cash flows $ 11,672 $ 1,109
Leases	LEASES The Company determines if an agreement qualifies as a lease or contains a lease in the period that the agreement is executed. ROU assets represent our right to use an underlying asset for the entirety of the lease term. Lease liabilities represent the Company's obligation to make payments over the life of the lease. A ROU asset and a lease liability are recognized at commencement of the lease based on the present value of the lease payments over the life of the lease. Since the interest rate implicit in a lease is generally not readily determinable, we use an incremental borrowing rate to determine the present value of the lease payments. The incremental borrowing rate represents the rate of interest the Company would have to pay to borrow on a collateralized basis over a similar lease term to obtain an asset of similar value. Our lease terms may include options to extend or terminate the lease when the Company is reasonably certain that we will exercise that option. Initial direct costs are included as part of the ROU asset upon commencement of the lease. The Company has applied the practical expedient available for lessees in which lease and non-lease components are accounted for as a single lease component for all of our asset classes. We also elected the practical expedient to exclude short-term leases (leases with original terms of 12 months or less) from our ROU asset and lease liability accounts. The Company has operating and finance leases for operating plants, warehouses, corporate offices, housing facilities, vehicles and equipment. Our leases have remaining lease terms of up to 54 years. The components of lease cost are as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease cost $ 3,300 $ 6,667 Short-term lease cost $ 225 $ 531 Finance lease cost: Amortization of right-of-use assets $ 270 $ 520 Interest on lease liabilities 67 128 Total finance lease cost $ 337 $ 648 Supplemental cash flow information related to leases is as follows: Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6,640 Operating cash flows from finance leases $ 128 Financing cash flows from finance leases $ 656 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 6,078 Finance leases $ 3,731 Supplemental balance sheet information related to leases is as follows: June 30, 2019 Location on Consolidated Balance Sheet Operating leases Operating lease right-of-use assets $ 44,697 Operating lease right-of-use assets Current operating lease liabilities $ 10,875 Other current liabilities Non-current operating lease liabilities 34,516 Long-term operating lease liabilities Total operating lease liabilities $ 45,391 Finance leases Finance lease assets $ 9,880 Property, plant and equipment, net Current finance lease liabilities $ 1,724 Other current liabilities Non-current finance lease liabilities 7,620 Other non-current liabilities Total finance lease liabilities $ 9,344 Weighted-average remaining lease term Operating leases 8.32 years Finance leases 5.28 years Weighted-average discount rate Operating leases 4.58 % Finance leases 4.20 % Future minimum operating lease obligations prior to the adoption of Topic 842, as of December 31, 2018 , were as follows: Payments Due by Period Amount 2019 $ 14,280 2020 11,131 2021 8,975 2022 6,174 2023 3,863 Thereafter 17,867 Total $ 62,290 Maturities of lease liabilities after the adoption of Topic 842, as of June 30, 2019 , are as follows: Operating Leases Finance Leases 2019 (excluding the six months ended June 30, 2019) $ 7,535 $ 1,047 2020 10,952 1,961 2021 8,793 1,877 2022 7,111 1,762 2023 5,116 1,744 Thereafter 17,556 2,062 Total lease payments 57,063 10,453 Present value of current lease liabilities 10,875 1,724 Present value of long-term lease liabilities 34,516 7,620 Total present value of lease liabilities 45,391 9,344 Difference between undiscounted cash flows and discounted cash flows $ 11,672 $ 1,109

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS 2019 Acquisition On April 1, 2019, the Company, through its wholly-owned subsidiary, WebBank, completed the acquisition of National Partners PFco, LLC ("National Partners"), located in Denver, Colorado, for consideration of $47,725 , which includes assumed debt, including debt with a third-party that WebBank had a preexisting $10,000 participation, and is subject to an earn-out based on future performance through June 30, 2020, as provided in the purchase agreement. National Partners provides commercial premium finance solutions for national insurance brokerages, independent insurance agencies and insureds in key markets throughout the United States. National Partners is included with WebBank in the Company's Financial Services segment. In connection with the acquisition, the Company recorded receivables, other intangible assets and goodwill associated with the acquisition, totaling approximately $ 37,195 , $2,230 and $6,515 , respectively, as well as other assets and liabilities. Other intangible assets consist of agent relationships of $1,800 and trade names of $430 . The goodwill from the acquisition consists largely of the synergies expected from combining the operations of the two businesses. The goodwill assigned to WebBank of $6,515 is expected to be deductible for income tax purposes. The preliminary purchase price allocation is subject to finalization of valuations of certain acquired assets and liabilities. 2018 Acquisitions On June 1, 2018, the Company completed the acquisition of PST Group, Inc. ("PST") located in Muskego, Wisconsin for approximately $4,620 . PST manufactures precision-engineered threaded components and custom ball screw assemblies, providing linear motion and power transmission solutions across a range of industries. PST is included in the Company's Diversified Industrial segment. On February 16, 2018, the Company completed the acquisition of certain assets and liabilities of Dunmore Corporation in the U.S. and the share purchase of Dunmore Europe GmbH in Germany (collectively, "Dunmore") for a purchase price of $69,604 , which includes assumed debt and is subject to an earn-out based on future earnings during the period from January 1, 2018 through December 31, 2019, as provided in the purchase agreement. In no case will the purchase price, including the potential earn-out, exceed $80,000 . Dunmore manufactures and distributes coated, laminated and metallized films for engineered applications in the imaging, aerospace, insulation and solar photo-voltaic markets and also provides products for custom and special applications. Dunmore reports into the Company's packaging business in its Diversified Industrial segment. In connection with the Dunmore acquisition, the Company recorded inventories, property, plant and equipment, other intangible assets and goodwill totaling approximately $7,700 , $30,600 , $17,300 and $15,409 , respectively, as well as other assets and liabilities. Other intangible assets consist of customer relationships of $10,100 , trade names of $3,300 , developed technology of $3,300 and customer order backlog of $600 . The expected useful lives are 15 years for customer relationships, indefinite for trade names and 10 years for developed technology. The customer order backlog was amortized based on the expected period over which the orders were fulfilled of four months. The goodwill from the Dunmore acquisition consists largely of the synergies expected from combining the operations of Dunmore and the Company's existing packaging business. The goodwill assigned to Dunmore Corporation of $7,126 is expected to be deductible for income tax purposes, while the goodwill assigned to Dunmore Europe GmbH of $8,283 is not tax deductible.

Loans Receivable, Including Loa

Loans Receivable, Including Loans Held For Sale	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Loans Receivable, Including Loans Held For Sale	LOANS RECEIVABLE, INCLUDING LOANS HELD FOR SALE Major classifications of loans receivable, including loans held for sale, held by WebBank, as of June 30, 2019 and December 31, 2018 are as follows: Total Current Non-current June 30, 2019 % December 31, 2018 % June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Loans held for sale $ 178,071 $ 188,143 $ 178,071 $ 188,143 $ — $ — Commercial real estate loans $ 632 — % $ 632 — % — — 632 632 Commercial and industrial 206,815 44 % 146,758 44 % 151,818 81,507 54,997 65,251 Consumer loans 262,645 56 % 188,391 56 % 104,985 89,899 157,660 98,492 Total loans 470,092 100 % 335,781 100 % 256,803 171,406 213,289 164,375 Less: Allowance for loan losses (29,436 ) (17,659 ) (29,436 ) (17,659 ) — — Total loans receivable, net $ 440,656 $ 318,122 227,367 153,747 213,289 164,375 Loans receivable, including loans held for sale (a) $ 405,438 $ 341,890 $ 213,289 $ 164,375 (a) The carrying value is considered to be representative of fair value because the rates of interest are not significantly different from market interest rates for instruments with similar maturities. Loans with a carrying value of approximately $59,170 and $56,581 were pledged as collateral for potential borrowings as of June 30, 2019 and December 31, 2018 , respectively. WebBank serviced $3,013 and $3,044 in loans for others as of June 30, 2019 and December 31, 2018 , respectively. WebBank sold loans classified as loans held for sale of $11,306,443 and $9,475,608 during the six months ended June 30, 2019 and 2018 , respectively. The sold loans were derecognized from the consolidated balance sheets. Loans classified as loans held for sale primarily consist of consumer and small business loans. Amounts added to loans held for sale during these same periods were $11,296,371 and $9,497,762 , respectively. The ALLL represents an estimate of probable and estimable losses inherent in the loan portfolio as of the balance sheet date. The amount of the ALLL is established by analyzing the portfolio at least quarterly, and a provision for or reduction of loan losses is recorded so that the ALLL is at an appropriate level at the balance sheet date. The increase in the ALLL was primarily due to an increase in the loan portfolio of held-to-maturity consumer loans. There have been no other significant changes in the credit quality of loans in the loan portfolio since December 31, 2018 .

Inventories, Net

Inventories, Net	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories, Net	INVENTORIES, NET A summary of Inventories, net is as follows: June 30, 2019 December 31, 2018 Finished products $ 52,969 $ 55,723 In-process 30,307 25,392 Raw materials 61,596 58,569 Fine and fabricated precious metal in various stages of completion 20,423 20,790 165,295 160,474 LIFO reserve (2,001 ) (1,624 ) Total $ 163,294 $ 158,850 Fine and Fabricated Precious Metal Inventory In order to produce certain of its products, the Company purchases, maintains and utilizes precious metal inventory. The Company records certain precious metal inven tory at the lower of last-in-first-out ("LIFO") cost or market value, with any adjustments recorded through Cost of goods sold. Remaining precious metal inventory is accounted for primarily at fair value. The Company obtains certain precious metals under a fee consignment agreement with the Bank of Nova Scotia ("ScotiaBank"). As of both June 30, 2019 and December 31, 2018 , the Company had approximately $6,700 of silver under consignment with ScotiaBank, which are recorded at fair value in Inventories, net with a corresponding liability for the same amount included in Accounts payable on the Company's consolidated balance sheets. Fees charged under the consignment agreement are recorded in Interest expense in the Company's consolidated statements of income. June 30, 2019 December 31, 2018 Supplemental inventory information: Precious metals stated at LIFO cost $ 8,819 $ 9,538 Precious metals stated under non-LIFO cost methods $ 9,603 $ 9,628 Market value per ounce: Silver $ 15.32 $ 15.51 Gold $ 1,409.00 $ 1,281.65 Palladium $ 1,524.00 $ 1,263.00

Goodwill and Other Intangibles,

Goodwill and Other Intangibles, Net	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangibles, Net	GOODWILL AND OTHER INTANGIBLE ASSETS, NET A reconciliation of the change in the carrying value of goodwill by reportable segment is as follows: Diversified Industrial Energy Financial Services Corporate and Other Total Balance as of December 31, 2018 Gross goodwill $ 205,765 $ 67,143 $ — $ 81 $ 272,989 Accumulated impairments (24,254 ) (64,790 ) — — (89,044 ) Net goodwill 181,511 2,353 — 81 183,945 Acquisitions (a), (b) 2,403 — 6,515 — 8,918 Currency translation adjustments (672 ) — — — (672 ) Balance as of June 30, 2019 Gross goodwill 207,496 67,143 6,515 81 281,235 Accumulated impairments (24,254 ) (64,790 ) — — (89,044 ) Net goodwill $ 183,242 $ 2,353 $ 6,515 $ 81 $ 192,191 (a) Diversified Industrial - Purchase price adjustments related to the 2018 Dunmore acquisition. See Note 4 - "Acquisitions" for additional information. (b) Financial Services - Goodwill related to the National Partners acquisition. See Note 4 - "Acquisitions" for additional information. A summary of Other intangible assets, net is as follows: June 30, 2019 December 31, 2018 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Customer relationships $ 219,527 $ 103,576 $ 115,951 $ 220,709 $ 95,796 $ 124,913 Trademarks, trade names and brand names 55,318 19,092 36,226 54,950 17,923 37,027 Developed technology, patents and patent applications 31,841 15,805 16,036 31,743 14,435 17,308 Other 17,964 13,276 4,688 17,884 13,591 4,293 Total $ 324,650 $ 151,749 $ 172,901 $ 325,286 $ 141,745 $ 183,541 Trademarks with indefinite lives as of both June 30, 2019 and December 31, 2018 were $11,320 . Amortization expense related to intangible assets was $5,638 and $7,822 for the three months ended June 30, 2019 and 2018 , respectively, and $11,104 and $15,173 for the six months ended June 30, 2019 and 2018, respectively.

Investments

Investments	6 Months Ended
	Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Investments	INVESTMENTS Short-Term Investments The Company's short-term investments primarily consist of its marketable securities portfolio. The classification of marketable securities as a current asset is based on the intended holding period and realizability of the investments. The investments are carried at fair value and totaled $1,439 as of both June 30, 2019 and December 31, 2018 . Proceeds from sales of marketable securities were $0 and $12,300 in the three months ended June 30, 2019 and 2018 , respectively, and $0 and $46,027 in the six months ended June 30, 2019 and 2018 , respectively. The Company determines gains and losses from sales of marketable securities based on specific identification of the securities sold. Gross realized gains and losses from sales of marketable securities, which are reported as a component of Realized and unrealized (gains) losses on securities, net in the Company's consolidated statements of income, were as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Gross realized gains $ — $ 6,416 $ — $ 16,090 Gross realized losses — (2,219 ) — (5,129 ) Realized gains, net $ — $ 4,197 $ — $ 10,961 Long-Term Investments The following table summarizes the Company's long-term investments as of June 30, 2019 and December 31, 2018 . Ownership % Long-Term Investments Balance (Income) Loss Recorded in the Consolidated Statements of Income Three Months Ended June 30, Six Months Ended June 30, June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 2019 2018 2019 2018 Corporate securities (a), (d) $ 199,259 $ 159,841 $ (36,603 ) $ 8,317 $ (38,486 ) $ 24,014 Collateralized debt securities 1,443 1,958 $ — $ — $ — $ — STCN convertible notes (b), (e) 13,437 14,943 $ 1,163 $ (272 ) $ 1,506 $ 42 STCN preferred stock (c), (e) 41,809 39,420 $ 2,049 $ (827 ) $ (2,068 ) $ (8,276 ) Equity method investments: (e) Carried at fair value: STCN common stock 29.4 % 29.6 % 33,093 31,457 $ 3,065 $ (649 ) $ (1,474 ) $ 5,350 Aviat Networks, Inc. ("Aviat") 12.5 % 12.4 % 9,182 8,881 $ 841 $ 147 $ (227 ) $ (702 ) Other 43.8 % 43.8 % 1,223 1,223 $ — $ — $ — $ — Long-term investments carried at fair value 299,446 257,723 Other equity method investments — 321 $ — $ 14 $ — $ 44 Total $ 299,446 $ 258,044 (a) Cost basis totaled $98,969 as of June 30, 2019 and $98,037 as of December 31, 2018 and gross unrealized gains totaled $100,290 and $61,804 as of June 30, 2019 and December 31, 2018 , respectively. (b) Represents investment in STCN convertible notes. The convertible notes outstanding as of December 31, 2018 matured on March 1, 2019. The Company entered into a new convertible note with STCN ("New Note") on February 28, 2019, which matures on March 1, 2024. The cost basis of the New Note totaled $14,943 as of June 30, 2019 and the gross unrealized loss was $1,506 as of June 30, 2019 . The New Note is convertible into shares of STCN's common stock at an initial conversion rate of 421.2655 shares of common stock per $1,000 principal amount of the New Note (which is equivalent to an initial conversion price of approximately $2.37 per share), subject to adjustment upon the occurrence of certain events. The cost basis of the Company's prior investment was $13,262 as of December 31, 2018 and gross unrealized gains totaled $1,681 as of December 31, 2018 . Changes in fair value are recorded in the Company's consolidated statements of income as the Company elected the fair value option to account for this investment. The New Notes, if converted as of June 30, 2019 , when combined with STCN common and preferred shares, also if converted, owned by the Company, would result in the Company having a direct interest of approximately 49.3 % of STCN's outstanding shares. (c) Represents investment in shares of STCN preferred stock with a cost basis of $35,321 . Each share of preferred stock can be converted into shares of STCN's common stock at an initial conversion price equal to $1.96 per share, subject to adjustment upon the occurrence of certain events. Changes in fair value are recorded in the Company's consolidated statements of income as the Company elected the fair value option to account for this investment. (d) (Income) loss from these investments is included in Realized and unrealized (gains) losses on securities, net in the consolidated statements of income. (e) (Income) loss from these investments is included in Loss (income) of associated companies, net of taxes in the consolidated statements of income. The amount of unrealized gains (losses) for the three and six months ended June 30, 2019 and 2018 that relate to equity securities still held as of June 30, 2019 and June 30, 2018 , respectively, was as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Net gains (losses) recognized during the period on equity securities $ 36,377 $ (11,824 ) $ 38,486 $ (25,613 ) Less: Net gains recognized during the period on equity securities sold during the period — 4,197 — 10,961 Unrealized gains (losses) recognized during the period on equity securities still held at the end of the period $ 36,377 $ (16,021 ) $ 38,486 $ (36,574 ) Equity Method Investments The Company's investments in associated companies are eligible to be accounted for under the equity method of accounting; however, the Company has elected the fair value option for most of these investments. Associated companies are included in the Corporate and Other segment. Certain associated companies have a fiscal year end that differs from December 31. Additional information for SPLP's significant investments in associated companies follows: • STCN is a supply chain business process management company serving clients in markets such as consumer electronics, communications, computing, medical devices, software and retail. STCN also owns IWCO Direct Holdings, Inc. ("IWCO"), which delivers data-driven marketing solutions for its customers, including strategy, creative and execution for omnichannel marketing campaigns, along with postal logistics programs for direct mail. • Aviat designs, manufactures and sells a range of wireless networking solutions and services to mobile and fixed telephone service providers, private network operators, government agencies, transportation and utility companies, public safety agencies and broadcast system operators across the globe. The following summary balance sheet amounts are for STCN as of April 30, 2019 and July 31, 2018, respectively, and the statement of income amounts are for the three and six months ended April 30, 2019 and 2018, respectively, which are both STCN's nearest corresponding fiscal quarters to the Company's fiscal quarters ended June 30, 2019 and 2018 : (Unaudited) 2019 2018 Summary of balance sheet amounts: Current assets $ 202,441 $ 264,281 Non-current assets 532,309 562,769 Total assets $ 734,750 $ 827,050 Current liabilities $ 220,499 $ 290,612 Non-current liabilities 386,667 393,618 Total liabilities 607,166 684,230 Contingently redeemable preferred stock 35,198 35,192 Equity 92,386 107,628 Total liabilities and equity $ 734,750 $ 827,050 Three Months Ended June 30, Six Months Ended June 30, (Unaudited) 2019 2018 2019 2018 Summary operating results: (a) Net revenue $ 194,003 $ 188,922 $ 400,226 $ 340,041 Gross profit $ 36,861 $ 39,005 $ 74,404 $ 55,955 Net (loss) income (a) $ (9,627 ) $ (10,333 ) $ (21,380 ) $ 54,497 (a) Net income in the 2018 period was favorably impacted by an income tax benefit related to STCN's acquisition of IWCO in December 2017. Other Investments WebBank has held-to-maturity ("HTM") debt securities which are carried at amortized cost and included in Other non-current assets on the Company's consolidated balance sheets. The amount and contractual maturities of HTM debt securities are noted in the table below. Actual maturities may differ from expected or contractual maturities because borrowers may have the right to call or prepay obligations with or without penalties. The securities are collateralized by unsecured consumer loans. June 30, 2019 Amortized Cost Gross Unrealized Gains (Losses) Estimated Fair Value Carrying Value Collateralized securities $ 58,144 $ 123 $ 58,267 $ 58,144 Contractual maturities within: One year to five years 42,188 Five years to ten years 14,172 After ten years 1,784 Total $ 58,144 December 31, 2018 Amortized Cost Gross Unrealized Gains (Losses) Estimated Fair Value Carrying Value Collateralized securities $ 48,005 $ (119 ) $ 47,886 $ 48,005 Contractual maturities within: One year to five years 22,866 Five years to ten years 23,189 After ten years 1,950 Total $ 48,005 WebBank regularly evaluates each HTM debt security whose value has declined below amortized cost to assess whether the decline in fair value is other-than-temporary. If there is an other-than-temporary impairment in the fair value of any individual security classified as HTM, WebBank writes down the security to fair value with a corresponding credit loss portion charged to earnings, and the non-credit portion charged to AOCI.

Debt

Debt	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt	DEBT Debt consists of the following: June 30, 2019 December 31, 2018 Short term debt: Foreign $ 4,458 $ 3,094 Short-term debt 4,458 3,094 Long-term debt: Credit Agreement 448,274 472,495 Other debt – foreign 625 796 Other debt – domestic 5,375 5,604 Subtotal 454,274 478,895 Less: portion due within one year 10,742 799 Long-term debt 443,532 478,096 Total debt $ 458,732 $ 481,989 Long-term debt as of June 30, 2019 matures in each of the next five years as follows: Total 2019 2020 2021 2022 2023 Thereafter Long-term debt (a) $ 454,274 $ 5,565 $ 14,243 $ 10,120 $ 424,346 $ — $ — (a) As of June 30, 2019 , long term debt of $10,742 is expected to mature over the following twelve months. On January 31, 2019, the Company entered into an amendment to its senior secured revolving credit facility ("Credit Agreement") to allow the Company to (i) convert $200,000 of the revolving credit commitments into a term loan with quarterly amortization equating to 5.0% per annum, (ii) amend certain defined leverage ratios under the Credit Agreement, increasing allowable leverage by 0.25 "turns" on a permanent basis through the maturity of the Credit Agreement, (iii) eliminate certain previously allowed investments, which would have reduced collateral available to the Company's lenders and (iv) make certain administrative changes. Accordingly, as of June 30, 2019 , the Company's Credit Agreement includes a revolving credit facility in an aggregate principal amount not to exceed $500,000 and a $200,000 term loan. The Credit Agreement covers substantially all of the Company's subsidiaries, with the exception of WebBank, and includes a $55,000 subfacility for swing line loans and a $50,000 subfacility for standby letters of credit. Borrowings under the Credit Agreement bear interest, at the Company's option, at annual rates of either the Base Rate or the Euro-Rate, as defined, plus an applicable margin as set forth in the Credit Agreement ( 1.50% and 2.50% , respectively, for Base Rate and Euro-Rate borrowings as of June 30, 2019 ), and the Credit Agreement provides for a commitment fee to be paid on unused borrowings. The weighted-average interest rate on the Credit Agreement was 4.86% as of June 30, 2019 . As of June 30, 2019 , letters of credit totaling $10,096 had been issued under the Credit Agreement, including $2,795 of the letters of credit guaranteeing various insurance activities, and $7,301 for environmental and other matters. The Credit Agreement permits SPLP, the parent, to fund the dividends on its preferred units and its routine corporate expenses. The Company's total availability under the Credit Agreement, which is based upon earnings and certain covenants as described in the Credit Agreement, was approximately $51,300 as of June 30, 2019 . The Credit Agreement will expire with all amounts outstanding due and payable on November 14, 2022. The Credit Agreement is gu aranteed by substantially all existing and thereafter acquired assets of the borrowers and the guarantors, as defined in the agreement, and a pledge of all of the issued and outstanding shares of capital stock of each of the borrowers' and guarantors' subsidiaries, and is fully guaranteed by the guarantors. The Credit Agreement is subject to certain mandatory prepayment provisions and restrictive and financial covenants, which include a maximum ratio limit on Total Leverage and a minimum ratio limit on Interest Coverage, as defined. The Company was in compliance with all financial covenants as of June 30, 2019 .

Financial Instruments

Financial Instruments	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments	FINANCIAL INSTRUMENTS As of June 30, 2019 and December 31, 2018 , financial instrument liabilities and related restricted cash consisted of $0 and $12,434 , respectively, related to short sales of corporate securities. Year-to-date activity is summarized below for financial instrument liabilities and related restricted cash: June 30, 2019 2018 Balance, beginning of period $ 12,434 $ 15,629 Settlement of short sales of corporate securities (14,611 ) (3,100 ) Short sales of corporate securities — 26 Net investment losses 2,177 941 Balance, end of period $ — $ 13,496 Short Sales of Corporate Securities From time to time, the Company enters into short sale transactions on certain corporate securities in which it receives proceeds from the sale of such securities and incurs obligations to deliver such securities at a later date. Upon initially entering into such short sale transactions, the Company recognizes a liability equal to the fair value of the obligation, with a comparable amount of cash and cash equivalents reclassified as restricted cash. Subsequent changes in the fair value of such obligations, determined based on the closing market price of the securities, are recognized as gains or losses in the consolidated statements of income, with a comparable adjustment made between unrestricted and restricted cash. During the six months ended June 30, 2019 , the Company settled its short positions. Foreign Currency Forward Contracts The Company enters into foreign currency forward contracts to hedge certain of its receivables and payables denominated in other currencies. In addition, the Company enters into foreign currency forward contracts to hedge the value of certain of its future sales denominated in Euros and the value of certain of its future purchases denominated in USD. These hedges are associated with certain of the Company's operations located in the United Kingdom and have settlement dates ranging through December 2019. The forward contracts that are used to hedge the risk of foreign exchange movement on its receivables and payables are accounted for as economic hedges. As of June 30, 2019 , there were contracts in place to buy Sterling and sell Euros in the amount of €13,450 . The fair values of these derivatives are recognized as derivative assets and liabilities on the Company's consolidated balance sheets. The net changes in fair value of the derivative assets and liabilities are recognized in the Company's consolidated statements of income. The forward contracts that are used to hedge the value of the Company's future sales and purchases are accounted for as cash flow hedges. As of June 30, 2019 , there were contracts in place to hedge the value of future sales denominated in Euros in the amount of €5,500 . These hedges are fully effective, and, accordingly, the changes in fair value are recorded in AOCI and, at maturity, any gain or loss on the forward contract is reclassified from AOCI into the Company's consolidated statements of income. There were no contracts in place as of June 30, 2019 to hedge future purchases denominated in USD. WebBank - Economic Interests in Loans WebBank's derivative financial instruments represent on-going economic interests in loans made after they are sold. These derivatives are carried at fair value on a gross basis in Other non-current assets on the Company's consolidated balance sheets and are classified within Level 3 in the fair value hierarchy (see Note 15 - "Fair Value Measurements"). As of June 30, 2019 , outstanding derivatives mature within 3 to 5 years. Gains and losses resulting from changes in the fair value of derivative instruments are accounted for in the Company's consolidated statements of income in Financial services revenue. Fair value represents the estimated amounts that WebBank would receive or pay to terminate the contracts at the reporting date based on a discounted cash flow model for the same or similar instruments. WebBank does not enter into derivative contracts for speculative or trading purposes. Precious Metal and Commodity Inventories The Company's precious metal and commodity inventories are subject to market price fluctuations. The Company enters into commodity futures and forward contracts to mitigate the impact of price fluctuations on its precious and certain non-precious metal inventories that are not subject to fixed price contracts. The Company's hedging strategy is designed to protect it against normal volatility; therefore, abnormal price changes in these commodities or markets could negatively impact the Company's earnings. As of June 30, 2019 , the Company had the following outstanding forward contracts with settlement dates through July 2019. There were no futures contracts outstanding as of June 30, 2019 . Commodity Amount Notional Value Silver 235,615 ounces $ 3,598 Gold 1,969 ounces $ 2,777 Palladium 695 ounces $ 1,078 Copper 225,000 pounds $ 632 Tin 15 metric tons $ 280 Fair Value Hedges. Certain forward contracts are accounted for as fair value hedges under Accounting Standards Codification ("ASC") 815 for the Company's precious metal inventory carried at fair value. These contracts hedge 13,650 ounces of silver and a majority of the Company's ounces of copper. The fair values of these derivatives are recognized as derivative assets and liabilities on the Company's consolidated balance sheets. The net changes in fair value of the derivative assets and liabilities, and the changes in the fair value of the underlying hedged inventory, are recognized in the Company's consolidated statements of income, and such amounts principally offset each other due to the effectiveness of the hedges. Economic Hedges. The remaining outstanding forward contracts for silver, and all the contracts for gold, palladium and tin, are accounted for as economic hedges. As these derivatives are not designated as accounting hedges under ASC 815, they are accounted for as derivatives with no hedge designation. The derivatives are marked to market with gains and losses recorded in earnings in the Company's consolidated statements of income. The economic hedges are associated primarily with the Company's precious metal inventory valued using the LIFO method. The forward contracts were made with a counterparty rated Aa2 by Moody's. Accordingly, the Company has determined that there is minimal credit risk of default. The Company estimates the fair value of its derivative contracts through the use of market quotes or with the assistance of brokers when market information is not available. The Company maintains collateral on account with the third-party broker which varies in amount depending on the value of open contracts. The fair value and carrying amount of derivative instruments on the Company's consolidated balance sheets are as follows: Fair Value of Derivative Assets (Liabilities) June 30, 2019 December 31, 2018 Location on Consolidated Balance Sheet Fair Value Location on Consolidated Balance Sheet Fair Value Derivatives designated as ASC 815 hedges Foreign exchange contracts Accrued liabilities $ (5 ) Accrued liabilities $ (95 ) Commodity contracts Prepaid expenses and other current assets $ 23 Accrued liabilities $ (14 ) Derivatives not designated as ASC 815 hedges Foreign exchange contracts Accrued liabilities $ (445 ) Accrued liabilities $ (81 ) Commodity contracts Accrued liabilities $ (4 ) Accrued liabilities $ (145 ) Economic interests in loans Other non-current assets $ 17,212 Other non-current assets $ 17,156 The effect of cash flow hedge accounting for foreign currency forward contracts on AOCI for the three and six months ended June 30, 2019 and 2018 is as follows: Location of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Recognized in AOCI on Derivatives Total Change in AOCI for the Period Three Months Ended June 30, Three Months Ended June 30, Three Months Ended June 30, 2019 2018 2019 2018 2019 2018 Diversified industrial net sales $ 256 $ 79 $ (169 ) $ 194 $ (425 ) $ 115 Six Months Ended June 30, Six Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 2019 2018 Diversified industrial net sales $ 373 $ 59 $ 466 $ 359 $ 93 $ 300 The effects of fair value and cash flow hedge accounting on the consolidated statements of income for the three and six months ended June 30, 2019 and 2018 are not material. The effects of derivatives not designated as ASC 815 hedging instruments on the consolidated statements of income for the three and six months ended June 30, 2019 and 2018 are as follows: Derivatives Not Designated as Hedging Instruments: Location of Gain (Loss) Recognized in Income Amount of Gain (Loss) Recognized in Income Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Foreign exchange forward contracts Other income (expense), net $ — $ (18 ) $ — $ (14 ) Commodity contracts Other income (expense), net (379 ) 342 (436 ) 440 Economic interests in loans Financial services revenue 3,791 4,083 6,677 7,364 Call options Other income (expense), net — — — 250 Put options Other income (expense), net — — — (3 ) Total $ 3,412 $ 4,407 $ 6,241 $ 8,037 Financial Instruments with Off-Balance Sheet Risk WebBank is a party to financial instruments with off-balance sheet risk. In the normal course of business, these financial instruments include commitments to extend credit in the form of loans as part of WebBank's lending arrangements. Those instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amounts recognized on the consolidated balance sheets. The contractual amounts of those instruments reflect the extent of involvement WebBank has in particular classes of financial instruments. As of June 30, 2019 and December 31, 2018 , WebBank's undisbursed loan commitments totaled $168,347 and $130,697 , respectively. Commitments to extend credit are agreements to lend to a borrower who meets the lending criteria through one of WebBank's lending agreements, provided there is no violation of any condition established in the contract with the counterparty to the lending arrangement. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since certain of the commitments are expected to expire without the credit being extended, the total commitment amounts do not necessarily represent future cash requirements. WebBank evaluates each prospective borrower's credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by WebBank upon extension of credit, is based on management's credit evaluation of the borrower and WebBank's counterparty. WebBank's exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit is represented by the contractual amount of those instruments. WebBank uses the same credit policy in making commitments and conditional obligations as it does for on-balance sheet instruments.

Pension and Other Post-Retireme

Pension and Other Post-Retirement Benefits	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Pension and Other Post-Retirement Benefits	PENSION AND OTHER POST-RETIREMENT BENEFITS The Company maintains several qualified and non-qualified pension plans and other post-retirement benefit plans. The following table presents the components of pension expense for the Company's significant pension plans. The Company's other pension and post-retirement benefit plans are not significant individually or in the aggregate. Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Interest cost $ 5,470 $ 5,351 $ 10,944 $ 10,729 Expected return on plan assets (6,108 ) (7,018 ) (12,232 ) (14,027 ) Amortization of actuarial loss 2,515 2,539 5,030 5,078 Total $ 1,877 $ 872 $ 3,742 $ 1,780 Pension expense is included in Selling, general and administrative expenses in the consolidated statements of income. Required future pension contributions are estimated based upon assumptions such as discount rates on future obligations, assumed rates of return on plan assets and legislative changes. Actual future pension costs and required funding obligations will be affected by changes in the factors and assumptions described in the previous sentence, as well as other changes such as any plan termination or other acceleration events. The Company's expected future minimum pension contributions to its significant pension plans are $19,300 for the remainder of 2019, and $35,600 , $34,900 , $37,600 , $29,400 and $23,700 in 2020, 2021, 2022, 2023 and for the five years thereafter, respectively.

Capital and Accumulated Other C

Capital and Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2019
Stockholders' Equity Note [Abstract]
Capital and Accumulated Other Comprehensive Loss	CAPITAL AND ACCUMULATED OTHER COMPREHENSIVE LOSS As of June 30, 2019 , the Company had 25,011,142 Class A units (regular common units) outstanding. Common Unit Repurchase Program The Board of Directors of SPH GP has approved the repurchase of up to an aggregate of 3,000,000 of the Company's common units ("Repurchase Program"). The Repurchase Program supersedes and cancels, to the extent any amounts remain available, all previously approved repurchase programs. Any purchases made under the Repurchase Program will be made from time to time on the open market at prevailing market prices or in negotiated transactions off the market, in compliance with applicable laws and regulations. In connection with the Repurchase Program, the Company may enter into a stock purchase plan. The Repurchase Program has no termination date. During the first six months of 2019, the Company purchased 505,336 units for an aggregate price of approximately $6,721 . Incentive Award Plan On May 24, 2018, the Company's unitholders approved the adoption of the Company's 2018 Incentive Award Plan ("2018 Plan"). The 2018 Plan provides equity-based compensation through the grant of options to purchase the Company's limited partnership units, unit appreciation rights, restricted units, phantom units, substitute awards, performance awards, other unit-based awards, and includes, as appropriate, any tandem distribution equivalent rights granted with respect to an award (collectively, "LP Units"). The 2018 Plan allows for issuance of up to 500,000 LP Units. In 2019, 207,499 restricted units were granted under the 2018 Plan. Such units were valued based upon the market value of the Company's LP Units on the date of grant, and collectively represent approximately $2,905 of unearned compensation that will be recognized as expense ratably over the vesting period of the units. The grants have vesting periods that range from three to ten years from the date of grant. Preferred Units The Company's 6.0% Series A preferred units, no par value ("SPLP Preferred Units") entitle the holders to a cumulative quarterly cash or in-kind (or a combination thereof) distribution. The Company declared cash distributions of approximately $5,945 and $5,800 to preferred unitholders for the six months ended June 30, 2019 and 2018 , respectively. The SPLP Preferred Units have a term of nine years and are redeemable at any time at the Company's option at a $25 liquidation value per unit, plus any accrued and unpaid distributions (payable in cash or SPLP common units, or a combination of both, at the Company's discretion). If redeemed in common units, the number of common units to be issued will be equal to the liquidation value per unit divided by the volume weighted-average price of the common units for 60 days prior to the redemption. In addition, the holders can require the Company to repurchase up to 1,600,000 of the SPLP Preferred Units, in cash on a pro rata basis, upon the third anniversary of the original issuance date of February 7, 2017, reduced by any preferred units called for redemption by the Company, in cash on a pro rata basis, prior to that time. This contingent redemption of preferred units in February 2020 comprises the Current portion of preferred unit liability on the Company's consolidated balance sheet as of June 30, 2019 . The SPLP Preferred Units have no voting rights, except that holders of the preferred units have certain voting rights in limited circumstances relating to the election of directors following the failure to pay six quarterly distributions. The SPLP Preferred Units are recorded as liabilities, including accrued interest expense, on the Company's consolidated balance sheets because they have an unconditional obligation to be redeemed for cash or by issuing a variable number of SPLP common units for a monetary value that is fixed and known at inception. Because the SPLP Preferred Units are classified as liabilities, distributions thereon are recorded as a component of Interest expense in the Company's consolidated statements of income. As of June 30, 2019 , there were 7,927,288 SPLP Preferred Units outstanding. Purchase of Noncontrolling Interest In June 2018, the Company entered into purchase agreements with minority stockholders of its subsidiary, WebFinancial Holding Corporation ("WFHC"), pursuant to which the Company purchased shares of common stock and preferred stock of WFHC in exchange for aggregate consideration totaling $13,278 , comprised of cash of $6,306 , 185,407 common units of SPLP and 186,271 SPLP Preferred Units. In accordance with the accounting standard on consolidation, changes in a parent's ownership interest where the parent retains a controlling financial interest in its subsidiary are accounted for as equity transactions. The carrying amount of the acquired noncontrolling interest was eliminated to reflect the change in SPLP's ownership interest, and the difference between the fair value of the consideration paid and the amount by which the noncontrolling interest was adjusted was recognized in Partners' capital. Accumulated Other Comprehensive Loss Changes, net of tax, in AOCI are as follows: Unrealized loss on available-for-sale debt securities Unrealized (loss) gain on derivative financial instruments Cumulative translation adjustments Change in net pension and other benefit obligations Total Balance at December 31, 2018 $ (274 ) $ (277 ) $ (23,476 ) $ (153,217 ) $ (177,244 ) Net other comprehensive income attributable to common unitholders (a) — 518 1,303 — 1,821 Balance at March 31, 2019 (274 ) 241 (22,173 ) (153,217 ) (175,423 ) Net other comprehensive loss attributable to common unitholders (b) — (425 ) (1,797 ) — (2,222 ) Balance at June 30, 2019 $ (274 ) $ (184 ) $ (23,970 ) $ (153,217 ) $ (177,645 ) (a) Net of tax provision of approximately $92 . (b) Net of tax benefit of approximately $90 . Unrealized gain on available-for-sale securities Unrealized (loss) gain on derivative financial instruments Cumulative translation adjustments Change in net pension and other benefit obligations Total Balance at December 31, 2017 $ 91,078 $ (1,901 ) $ (18,259 ) $ (177,085 ) $ (106,167 ) Net other comprehensive income attributable to common unitholders (a), (b) — 170 3,098 — 3,268 Cumulative effect of adopting ASU 2016-01 relating to net unrealized gains and losses on equity securities (c) (91,078 ) — — — (91,078 ) Balance at March 31, 2018 — (1,731 ) (15,161 ) (177,085 ) (193,977 ) Net other comprehensive income (loss) attributable to common unitholders (d), (e) — 104 (3,841 ) 5 (3,732 ) Acquisition of AOCI from noncontrolling interests — (72 ) (290 ) (213 ) (575 ) Balance at June 30, 2018 $ — $ (1,699 ) $ (19,292 ) $ (177,293 ) $ (198,284 ) (a) Net of a tax provision of approximately $68 . (b) Does not include the net unrealized gain on derivative financial instruments of $15 and cumulative translation adjustments of $206 which are attributable to noncontrolling interests. (c) Effective January 1, 2018 upon adoption of ASU 2016-01, a cumulative effect reclassification adjustment was made to remove the net unrealized gains and losses on equity securities from AOCI and reclassify them to Partners' capital. (d) Net of a tax benefit of approximately $32 . (e) Does not include the net unrealized gain on derivative financial instruments of $11 , cumulative translation adjustment of $(246) and the change in net pension and other post-retirement benefit obligations of $(5) which are attributable to noncontrolling interests. Incentive Unit Expense Effective January 1, 2012, SPLP issued to the Manager partnership profits interests in the form of incentive units, a portion of which will be classified as Class C common units of SPLP upon the attainment of certain specified performance goals by SPLP, which are determined as of the last day of each fiscal year. If the performance goals are not met for a fiscal year, no portion of the incentive units will be classified as Class C common units for that year. The number of outstanding incentive units is equal to 100% of the common units outstanding, including common units held by non-wholly-owned subsidiaries. The performance goals and expense related to the classification of a portion of the incentive units as Class C units is measured on an annual basis, but is accrued on a quarterly basis. Accordingly, the expense accrued is adjusted to reflect the fair value of the Class C common units on each interim calculation date. In the event the cumulative incentive unit expense calculated quarterly or for the full year is an amount less than the total previously accrued, the Company records a negative incentive unit expense in the quarter when such over accrual is determined. The expense is recorded in Selling, general and administrative expenses in the Company's consolidated statements of income. No incentive unit expense was recorded in the three and six months ended June 30, 2019 or 2018 .

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company recorded tax provisions of $14,718 and $7,606 for the three months ended June 30, 2019 and 2018 , respectively, and $17,679 and $8,936 for the six months ended June 30, 2019 and 2018, respectively. The Company's tax provision represents the income tax expense or benefit of its consolidated subsidiaries that are taxable entities. The Company's consolidated subsidiaries have recorded deferred tax valuation allowances to the extent that they believe it is more likely than not that the benefits of certain deferred tax assets will not be realized in future periods.

Net (Loss) Income Per Common Un

Net (Loss) Income Per Common Unit	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Net (Loss) Income Per Common Unit	NET INCOME PER COMMON UNIT The following data was used in computing net income per common unit shown in the Company's consolidated statements of income: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Net income $ 21,034 $ 13,555 $ 36,656 $ 4,704 Net loss (income) attributable to noncontrolling interests in consolidated entities 29 (513 ) 85 (740 ) Net income attributable to common unitholders 21,063 13,042 36,741 3,964 Effect of dilutive securities: Interest expense from SPLP Preferred Units (a), (b) 2,973 2,937 5,945 — Net income attributable to common unitholders – assuming dilution $ 24,036 $ 15,979 $ 42,686 $ 3,964 Net income per common unit – basic Net income attributable to common unitholders $ 0.84 $ 0.50 $ 1.47 $ 0.15 Net income per common unit – diluted Net income attributable to common unitholders $ 0.61 $ 0.42 $ 1.09 $ 0.15 Denominator for net income per common unit – basic 24,982,728 26,147,125 24,915,446 26,205,290 Effect of dilutive securities: Unvested restricted common units — 26,601 190 34,293 SPLP Preferred Units (a) 14,155,871 11,494,299 14,242,874 — Denominator for net income per common unit – diluted (a), (b) 39,138,599 37,668,025 39,158,510 26,239,583 (a) Assumes the SPLP Preferred Units were redeemed in common units as described in Note 12 - "Capital and Accumulated Other Comprehensive Loss." (b) For the three months ended June 30, 2019 , the diluted per unit calculation does not include the impact of 3,448 of unvested restricted common units, and for the six months ended June 30, 2018 , the diluted per unit calculation does not include the impact of 11,152,888 of SPLP Preferred Units, since the impact would have been anti-dilutive.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Assets and liabilities measured at fair value on a recurring basis in the Company's consolidated financial statements as of June 30, 2019 and December 31, 2018 are summarized by type of inputs applicable to the fair value measurements as follows: June 30, 2019 Level 1 Level 2 Level 3 Total Assets: Marketable securities (a) $ 988 $ 451 $ — $ 1,439 Long-term investments (a) 241,533 — 57,913 299,446 Precious metal and commodity inventories recorded at fair value 9,805 — — 9,805 Economic interests in loans — — 17,212 17,212 Commodity contracts on precious metal and commodity inventories — 23 — 23 Warrants — — 1,738 1,738 Total $ 252,326 $ 474 $ 76,863 $ 329,663 Liabilities: Commodity contracts on precious metal and commodity inventories — 4 — 4 Other precious metal liabilities 7,824 — — 7,824 Foreign currency forward exchange contracts — 450 — 450 Total $ 7,824 $ 454 $ — $ 8,278 December 31, 2018 Level 1 Level 2 Level 3 Total Assets: Marketable securities (a) $ 836 $ 603 $ — $ 1,439 Long-term investments (a) 200,179 14,943 42,601 257,723 Investments in certain funds — — 422 422 Precious metal and commodity inventories recorded at fair value 9,884 — — 9,884 Economic interests in loans — — 17,156 17,156 Foreign currency forward exchange contracts — 275 — 275 Warrants — — 1,738 1,738 Total $ 210,899 $ 15,821 $ 61,917 $ 288,637 Liabilities: Financial instrument obligations $ 12,434 $ — $ — $ 12,434 Commodity contracts on precious metal and commodity inventories — 159 — 159 Other precious metal liabilities 8,589 — — 8,589 Foreign currency forward exchange contracts — 450 — 450 Total $ 21,023 $ 609 $ — $ 21,632 (a) For additional detail of the marketable securities and long-term investments see Note 8 - "Investments." There were no transfers of securities among the various measurement input levels during the three or six months ended June 30, 2019 . Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e. the "exit price") in an orderly transaction between market participants at the measurement date. Fair value measurements are broken down into three levels based on the reliability of inputs as follows: Level 1 inputs are quoted prices in active markets for identical assets or liabilities as of the measurement date ("Level 1"). Level 2 inputs can include quoted prices in active markets for similar assets or liabilities, quoted prices in a market that is not active for identical assets or liabilities, or other inputs that can be corroborated by observable market data ("Level 2"). Level 3 inputs are unobservable for the asset or liability when there is little, if any, market activity for the asset or liability. Level 3 inputs are based on the best information available and may include data developed by the Company ("Level 3"). The fair value of the Company's financial instruments, such as cash and cash equivalents, trade and other receivables and accounts payable, approximates carrying value due to the short-term maturities of these assets and liabilities. Carrying cost approximates fair value for long-term debt, which has variable interest rates. The precious metal and commodity inventories associated with the Company's fair value hedges (see Note 10 - "Financial Instruments") are reported at fair value. Fair values of these inventories are based on quoted market prices on commodity exchanges and are considered Level 1 measurements. The derivative instruments that the Company purchases in connection with its precious metal and commodity inventories, specifically commodity futures and forward contracts, are also valued at fair value. The futures contracts are Level 1 measurements since they are traded on a commodity exchange. The forward contracts are entered into with a counterparty and are considered Level 2 measurements. Following is a summary of changes in assets measured using Level 3 inputs: Investments in Associated Companies (a) Marketable Securities and Other (b) Total Balance as of December 31, 2018 $ 40,643 $ 21,274 $ 61,917 Purchases 14,943 — 14,943 Sales and cash collections — (7,557 ) (7,557 ) Realized gains — 6,677 6,677 Unrealized gains 883 — 883 Balance as of June 30, 2019 $ 56,469 $ 20,394 $ 76,863 Balance as of December 31, 2017 $ 36,223 $ 25,693 $ 61,916 Purchases — 250 250 Sales and cash collections — (17,378 ) (17,378 ) Realized gains — 11,584 11,584 Unrealized gains 8,276 232 8,508 Unrealized losses — (3,713 ) (3,713 ) Balance as of June 30, 2018 $ 44,499 $ 16,668 $ 61,167 (a) Unrealized gains and losses are recorded in Loss (income) of associated companies, net of taxes in the Company's consolidated statements of income. (b) Realized and unrealized gains and losses are recorded in Realized and unrealized (gains) losses on securities, net or Financial services revenue in the Company's consolidated statements of income. Long-Term Investments - Valuation Techniques The Company estimates the value of its investments in STCN convertible preferred stock and the New Note using a Monte Carlo simulation. Key inputs in these valuations include the trading price and volatility of STCN's common stock, the risk-free rate of return, as well as the dividend rate, conversion price, redemption date of the preferred stock and the maturity date of the note. Marketable Securities and Other - Valuation Techniques The Company determines the fair value of certain corporate securities and corporate obligations by incorporating and reviewing prices provided by third-party pricing services based on the specific features of the underlying securities. The fair value of the derivatives held by WebBank (see Note 10 - "Financial Instruments") represent the estimated amounts that WebBank would receive or pay to terminate the contracts at the reporting date and is based on discounted cash flow analyses that consider credit, performance and prepayment. Unobservable inputs used in the discounted cash flow analyses are: a constant prepayment rate of 7.29% to 35.78% , a constant default rate of 1.64% to 27.54% and a discount rate of 1.69% to 27.64% .

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Environmental and Litigation Matters As discussed in more detail below, certain of the Company's subsidiaries have been designated as potentially responsible parties ("PRPs") by federal and state agencies with respect to certain sites with which they may have had direct or indirect involvement and as defendants in certain litigation matters. Most such legal proceedings and environmental investigations involve unspecified amounts of potential damage claims or awards, are in an initial procedural phase, involve significant uncertainty as to the outcome or involve significant factual issues that need to be resolved, such that it is not possible for the Company to estimate a range of possible loss. For matters that have progressed sufficiently through the investigative process such that the Company is able to reasonably estimate a range of possible loss, an estimated range of possible loss is provided, in excess of the accrued liability (if any) for such matters. Any estimated range is or will be based on currently available information and involves elements of judgment and significant uncertainties. Any estimated range of possible loss may not represent the Company's maximum possible loss exposure. The circumstances of such legal proceedings and environmental investigations will change from time to time, and actual results may vary significantly from the current estimate. For current proceedings not specifically reported below, management does not anticipate that the liabilities, if any, arising from such proceedings would have a material effect on the financial position, liquidity or results of operations of the Company. The environmental claims are in various stages of administrative or judicial proceedings and include demands for recovery of past governmental costs, and for future investigations and remedial actions. In many cases, the dollar amounts of the claims have not been specified and, with respect to a number of the PRP claims, have been asserted against a number of other entities for the same cost recovery or other relief as was asserted against certain of the Company's subsidiaries. The Company typically accrues costs associated with environmental and litigation matters on an undiscounted basis, when they become probable and reasonably estimable. As of June 30, 2019 , on a consolidated basis, the Company has recorded liabilities of $43,003 in Accrued liabilities on the consolidated balance sheet, which represent the current estimate of environmental remediation liabilities as well as reserves related to the litigation matters discussed below. Expenses relating to these costs, and any recoveries, are included in Selling, general and administrative expenses in the Company's consolidated statements of income. In addition, the Company has insurance coverage available for several of these matters and believes that excess insurance coverage may be available as well. Estimates of the Company's liability for remediation of a particular site and the method and ultimate cost of remediation require a number of assumptions that are inherently difficult to make, and the ultimate outcome may be materially different from current estimates. Environmental Matters Certain subsidiaries of the Company's Handy & Harman Ltd. subsidiary ("HNH") have existing and contingent liabilities relating to environmental matters, including costs of remediation, capital expenditures, and potential fines and penalties relating to possible violations of national and state environmental laws. Those subsidiaries have remediation expenses on an ongoing basis, although such costs are continually being readjusted based upon the emergence of new techniques and alternative methods. HNH recorded liabilities of approximately $11,254 related to estimated environmental remediation costs as of June 30, 2019 . HNH may have insurance coverage available for certain of these matters. Included among these liabilities, certain HNH subsidiaries have been identified as PRPs under the Comprehensive Environmental Response, Compensation, and Liability Act ("CERCLA") or similar state statutes, and are parties to administrative consent orders in connection with certain properties. Those subsidiaries may be subject to joint and several liabilities imposed by CERCLA on PRPs. Due to the technical and regulatory complexity of remedial activities and the difficulties attendant in identifying PRPs and allocating or determining liability among them, the subsidiaries are unable to reasonably estimate the ultimate cost of compliance with such laws. Based upon information currently available, the HNH subsidiaries do not expect that their respective environmental costs, including the incurrence of additional fines and penalties, if any, will have a material adverse effect on them or that the resolution of these environmental matters will have a material adverse effect on the financial position, results of operations or cash flows of such subsidiaries or the Company, but there can be no such assurances. The Company anticipates that the subsidiaries will pay any such amounts out of their respective working capital, although there is no assurance that they will have sufficient funds to pay them. In the event that a HNH subsidiary is unable to fund its liabilities, claims could be made against its respective parent companies for payment of such liabilities. The sites where certain HNH subsidiaries have environmental liabilities include the following: HNH has been working with the Connecticut Department of Energy and Environmental Protection ("CTDEEP") with respect to its obligations under a 1989 consent order that applies to a former HNH manufacturing facility. An ecological risk assessment was submitted in the second quarter of 2016 to the CTDEEP for their review and approval. An upland work plan to investigate the upland portion of the parcel was approved by the CTDEEP in March 2018 and has now been completed. Additional investigatory work could be required dependent upon CTDEEP requirements. Investigation of the wetlands portion is expected to start in 2019, pending regulatory approvals and setting goals for the entire parcel. The total remediation costs for the site cannot be reasonably estimated at this time. Based on the current stage of the investigation at this time, the Company estimates that it is reasonably possible that it may incur aggregate losses over a period of several years, above its accrued liability, in a range of $2,000 to $6,000 . Due to the uncertainties, there can be no assurance that the resolution of this matter will not be material to the financial position, results of operations or cash flows of HNH or the Company. In 1986, Handy & Harman Electronic Materials Corporation ("HHEM"), a subsidiary of HNH, entered into an administrative consent order ("ACO") with the New Jersey Department of Environmental Protection ("NJDEP") with regard to certain property that it purchased in 1984 in New Jersey. The ACO involves investigation and remediation activities to be performed with regard to soil and groundwater contamination. HHEM is actively remediating the property and is continuing to investigate effective methods for achieving compliance with the ACO. HHEM anticipates entering into discussions with the NJDEP to address that agency's potential natural resource damage claims, the timing and ultimate scope and cost of which cannot be estimated at this time. Pursuant to a settlement agreement with the former owner/operator of the site, the responsibility for site investigation and remediation costs and other related costs are contractually allocated 75% to the former owner/operator and 25% jointly to HHEM and HNH, all after having the first $1,000 paid by the former owner/operator. As of June 30, 2019 , total investigation and remediation costs of approximately $8,400 and $2,700 have been expended by the former owner/operator and HHEM, respectively, in accordance with the settlement agreement. Additionally, HHEM was reimbursed indirectly through insurance coverage for a portion of the costs for which it is responsible, and HHEM believes that there is additional excess insurance coverage, which it is currently pursuing. There is no assurance that the former owner/operator or guarantors will continue to timely reimburse HHEM for expenditures and/or will be financially capable of fulfilling their obligations under the settlement agreement and the guaranties. There is no assurance that there will be any additional insurance reimbursement. A reserve of approximately $1,300 has been established for HHEM's expected 25% share of anticipated costs at this site, which is based upon the recent selection of a final remedy, on-going operations and maintenance, additional investigations and monitored natural attenuation testing over the next 30 years. There can be no assurance that the resolution of this matter will not be material to the financial position, results of operations or cash flows of HHEM, HNH or the Company. HNH's subsidiary, SL Industries, Inc. ("SLI"), may incur environmental costs in the future as a result of the past activities of its former subsidiary, SL Surface Technologies, Inc. ("SurfTech"), in Pennsauken, New Jersey ("Pennsauken Site"), in Camden, New Jersey and at its former subsidiary, SGL Printed Circuits in Wayne, New Jersey. At the Pennsauken Site, in 2013, SLI entered into a consent decree with both the U.S. Department of Justice and the U.S. Environmental Protection Agency ("EPA") and has since completed the remediation required by the consent decree and has paid the EPA a fixed sum for its past oversight costs. Separate from the consent decree, in December 2012, the NJDEP made a settlement demand of $1,800 for past and future cleanup and removal costs and natural resource damages ("NRD"). To avoid the time and expense of litigating the matter, SLI offered to pay approximately $300 to fully resolve the claim presented by the State of New Jersey ("State"). SLI's settlement offer was rejected. On December 6, 2018, the State filed a complaint against SLI related to its operations at the Pennsauken Site. The State is seeking treble damages and attorneys' fees, NRD for loss of use of groundwater, as well as a request for relief that SLI pay all cleanup and removal costs that the State has incurred and will incur at the Pennsauken Site. The State did not specifically identify its alleged damages in the complaint. SLI intends to assert all legal and procedural defenses available to it. Based upon currently available information, we have determined that a range of potential loss can no longer be reasonably estimated at this time. Accordingly, there can be no assurance that the resolution of this matter will not be material to the financial position, results of operations or cash flows of SLI, HNH or the Company. SLI reported soil contamination and a groundwater contamination in 2003 from the SurfTech site located in Camden, New Jersey. Substantial investigation and remediation work have been completed under the direction of the licensed site remediation professional ("LSRP") for the site. Additional soil excavation and chemical treatment are expected to begin in the third quarter of 2019. Post-remediation groundwater monitoring will be conducted and a full-scale groundwater bioremediation is expected to be implemented following completion of the remediation. A reserve of $2,600 has been established for anticipated costs at this site, but there can be no assurance that there will not be potential additional costs associated with the site which cannot be reasonably estimated at this time. Accordingly, there can be no assurance that the resolution of this matter will not be material to the financial position, results of operations or cash flows of SLI, HNH or the Company. SLI is currently participating in environmental assessment and cleanup at a commercial facility located in Wayne, New Jersey. Contaminated soil and groundwater have undergone remediation with the NJDEP and LSRP oversight, but contaminants of concern in groundwater and surface water, which extend off-site, remain above applicable NJDEP remediation standards. A reserve of approximately $ 1,200 has been established for anticipated costs, but there can be no assurance that there will not be potential additional costs associated with the site which cannot be reasonably estimated at this time. Accordingly, there can be no assurance that the resolution of this matter will not be material to the financial position, results of operations or cash flows of SLI, HNH or the Company. Litigation Matters On December 8, 2017, a stockholder class action, captioned Sciabacucchi v. DeMarco, et al., was filed in the Court of Chancery of the State of Delaware by a purported former stockholder of HNH challenging the Company's acquisition, through a subsidiary, of all of the outstanding shares of common stock of HNH not already owned by the Company or any of its affiliates. The action names as defendants the former members of the HNH board of directors, the Company and SPH GP, and alleges, among other things, that the defendants breached their fiduciary duties to the former public stockholders of HNH in connection with the aforementioned acquisition. The complaint sought, among other relief, unspecified monetary damages, attorneys' fees and costs. On July 9, 2019, the Company entered into a settlement of the case, solely to avoid the substantial burden, expense, inconvenience and distraction of continued litigation and to resolve each of the plaintiff's claims as against the defendant parties. In the settlement, the defendants agreed to pay the plaintiff class $30,000 , but denied that they engaged in any wrongdoing or committed any violation of law or breach of duty and stated that they believe they acted properly, in good faith, and in a manner consistent with their legal duties. The settlement is subject to court approval. Our insurance carriers have agreed to contribute an aggregate of $17,500 toward the settlement amount. The Company recorded a charge of $12,500 in Selling, general and administrative expenses in the consolidated statement of income for the three months ended June 30, 2019 , which consisted of the legal settlement of $30,000 (included in Accrued liabilities at June 30, 2019 ), reduced by $17,500 of insurance recoveries (included in Trade and other receivables) at June 30, 2019 . The Company made a demand of an aggregate of $10,000 in further contributions from two insurance carriers, which the carriers declined, and we are pursuing claims in court to endeavor to recover this sum, although there can be no assurance as to the outcome of this litigation. On April 13, 2018, a purported shareholder of STCN, Donald Reith, filed a verified complaint, Reith v. Lichtenstein, et al., 2018-0277 (Del. Ch.) in the Delaware Court of Chancery. The plaintiff seeks to assert claims against the Company and certain of its affiliates and against the members of STCN's board of directors in connection with the acquisition of $35,000 of STCN's Series C Preferred Stock by an affiliate of the Company and equity grants made to three individual defendants. The complaint includes claims for breach of fiduciary duty as STCN directors against all the individual defendants; claims for aiding and abetting breach of fiduciary duty against the Company; a claim for breach of fiduciary duty as controlling stockholder against the Company; and a derivative claim for unjust enrichment against the Company and the three individuals who received equity grants. The complaint demands damages in an unspecified amount for STCN and its stockholders, together with rescission, disgorgement and other equitable relief. The defendants moved to dismiss the complaint for failure to plead demand futility and failure to state a claim. On June 28, 2019, the Court of Chancery issued an opinion denying in substantial part the motion. The Company will continue to vigorously defend itself against these claims; however, the outcome of this matter is uncertain. A subsidiary of BNS Holdings Liquidating Trust ("BNS Sub") has been named as a defendant in multiple alleged asbestos-related toxic-tort claims filed over a period beginning in 1994 through June 30, 2019 . In many cases these claims involved more than 100 defendants. Of the claims settled, the average settlement was less than $3 . There remained approximately 30 pending asbestos claims as of June 30, 2019 . BNS Sub believes it has significant defenses to any liability for toxic-tort claims on the merits. None of these toxic-tort claims has gone to trial and, therefore, there can be no assurance that these defenses will prevail. BNS Sub has insurance policies covering asbestos-related claims for years beginning 1974 through 1988. BNS Sub annually receives retroactive billings or credits from its insurance carriers for any increase or decrease in claims accruals as claims are filed, settled or dismissed, or as estimates of the ultimate settlement costs for the then-existing claims are revised. As of both June 30, 2019 and December 31, 2018 , BNS Sub has accrued $1,349 relating to the open and active claims against BNS Sub. This accrual includes the amount of unpaid retroactive billings submitted to the Company by the insurance carriers and also the Company's best estimate of the likely costs for BNS Sub to settle these claims outside the amounts funded by insurance. There can be no assurance that the number of future claims and the related costs of defense, settlements or judgments will be consistent with the experience to-date of existing claims and that BNS Sub will not need to significantly increase its estimated liability for the costs to settle these claims to an amount that could have a material effect on the consolidated financial statements. In the ordinary course of our business, we are subject to other periodic lawsuits, investigations, claims and proceedings, including, but not limited to, contractual disputes, employment, environmental, health and safety matters, as well as claims associated with our historical acquisitions and divestitures. There is insurance coverage available for many of the foregoing actions. Although we cannot predict with certainty the ultimate resolution of lawsuits, investigations, claims and proceedings asserted against us, we do not believe any currently pending legal proceeding to which we are a party will have a material adverse effect on our business, prospects, financial condition, cash flows, results of operations or liquidity.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS Management Agreement with SP General Services LLC SPLP is managed by the Manager, pursuant to the terms of the Management Agreement, which receives a fee at an annual rate of 1.5% of total Partners' capital ("Management Fee"), payable on the first day of each quarter and subject to quarterly adjustment. In addition, SPLP may issue to the Manager partnership profits interests in the form of incentive units, which will be classified as Class C common units of SPLP, upon the attainment of certain specified performance goals by SPLP, which are determined as of the last day of each fiscal year (see Note 12 - "Capital and Accumulated Other Comprehensive Loss" for additional information on the incentive units). The Management Agreement is automatically renewed each December 31 for successive one -year terms unless otherwise determined at least 60 days prior to each renewal date by a majority of the Company's independent directors. The Management Fee was $1,975 and $2,013 for the three months ended June 30, 2019 and 2018 , respectively, and $3,908 and $4,061 for the six months ended June 30, 2019 and 2018, respectively. The Management Fee is included in Selling, general and administrative expenses in the Company's consolidated statements of income. Unpaid amounts for management fees included in Payables to related parties on the Company's consolidated balance sheet was $75 and $1 as of June 30, 2019 and December 31, 2018 , respectively. SPLP will bear (or reimburse the Manager with respect to) all its reasonable costs and expenses of the managed entities, the Manager, SPH GP or their affiliates, including but not limited to: legal, tax, accounting, auditing, consulting, administrative, compliance, investor relations costs related to being a public entity rendered for SPLP or SPH GP, as well as expenses incurred by the Manager and SPH GP which are reasonably necessary for the performance by the Manager of its duties and functions under the Management Agreement and certain other expenses incurred by managers, officers, employees and agents of the Manager or its affiliates on behalf of SPLP. Reimbursable expenses incurred by the Manager in connection with its provision of services under the Management Agreement were approximately $1,429 and $1,962 for the three months ended June 30, 2019 and 2018 , respectively, and $3,569 and $2,987 for the six months ended June 30, 2019 and 2018, respectively. Unpaid amounts for reimbursable expenses were approximately $1,319 and $254 as of June 30, 2019 and December 31, 2018 , respectively, and are included in Payables to related parties on the Company's consolidated balance sheets. Corporate Services The Company's subsidiary, Steel Services Ltd ("Steel Services"), through management services agreements with its subsidiaries and portfolio companies, provides services, which include assignment of C-Level management personnel, legal, tax, accounting, treasury, consulting, auditing, administrative, compliance, environmental health and safety, human resources, marketing, investor relations, operating group management and other similar services. In addition to its servicing agreements with SPLP and its consolidated subsidiaries, which are eliminated in consolidation, Steel Services has management services agreements with other companies considered to be related parties, including J. Howard Inc., Steel Partners, Ltd. and affiliates, and STCN. In total, Steel Services currently charges approximately $4,474 annually to these companies. All amounts billed under these service agreements are recorded as a reduction of Selling, general and administrative expenses. Mutual Securities, Inc. Pursuant to the Management Agreement, the Manager is responsible for selecting executing brokers. Securities transactions for SPLP are allocated to brokers on the basis of reliability, and best price and execution. The Manager has selected Mutual Securities, Inc. as an introducing broker and may direct a substantial portion of the managed entities' trades to such firm, among others. An officer of the Manager and SPH GP is affiliated with Mutual Securities, Inc. The commissions paid by SPLP to Mutual Securities, Inc. were not significant in any period. Other As of June 30, 2019 and December 31, 2018 , several related parties and consolidated subsidiaries had deposits totaling $1,164 and $1,667 , respectively, at WebBank. Approximately $105 and $616 of these deposits, including interest which was not significant, have been eliminated in consolidation as of June 30, 2019 and December 31, 2018 , respectively.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION SPLP operates through the following segments: Diversified Industrial, Energy, Financial Services, and Corporate and Other, which are managed separately and offer different products and services. The Diversified Industrial segment is comprised of manufacturers of engineered niche industrial products, including joining materials, tubing, building materials, performance materials, electrical products, blades and route repair services, and packaging businesses. The Energy segment provides drilling and production services to the oil & gas industry and owns a youth sports business. The Financial Services segment consists primarily of the operations of WebBank, a Utah chartered industrial bank, which engages in a full range of banking activities. The Corporate and Other segment consists of several consolidated subsidiaries, including Steel Services, equity method and other investments, and cash and cash equivalents. Its income or loss includes certain unallocated general corporate expenses. Steel Services has management services agreements with our consolidated subsidiaries and other related companies as further discussed in Note 17 - "Related Party Transactions." Steel Services charged the Diversified Industrial, Energy and Financial Services segments approximately $9,180 , $1,443 and $720 , respectively, for the three months ended June 30, 2019 and $3,300 , $2,100 and $1,175 , respectively, for the three months ended June 30, 2018 . Steel Services charged the Diversified Industrial, Energy and Financial Services segments approximately $12,591 , $3,481 and $1,895 , respectively, for the six months ended June 30, 2019 and $6,600 , $4,200 and $2,350 , respectively, for the six months ended June 30, 2018 . These service fees are reflected as expenses in the segment income (loss) below, but are eliminated in consolidation. For the three and six months ended June 30, 2019 , the Company changed the measurement methods used to determine reported segment profit or loss. The 2018 financial information has been recast to reflect these changes on a comparable basis. Accordingly, for the three months ended June 30, 2018 , the Company reclassified interest expense from operating income (loss) from the Diversified Industrial, Energy, and Corporate and Other segments of $3,446 , $176 and $5,967 , respectively, to Interest expense in the segment information table presented below. For the six months ended June 30, 2018 , the Company reclassified interest expense from operating income (loss) from the Diversified Industrial, Energy, and Corporate and Other segments of $6,212 , $308 and $11,178 , respectively, to Interest expense. The Company also reclassified net investment losses of $1,027 and gains of $58 from the Energy segment to the Corporate and Other segment for the three months and six months ended June 30, 2018 , respectively. Segment information is presented below: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Revenue: Diversified industrial net sales $ 328,537 $ 358,398 $ 640,698 $ 666,016 Energy net revenue 43,532 47,073 82,518 83,665 Financial services revenue 42,134 28,966 78,040 51,001 Total revenue $ 414,203 $ 434,437 $ 801,256 $ 800,682 Income (loss) before interest expense and income taxes: Diversified industrial $ 15,606 $ 30,256 $ 29,391 $ 43,704 Energy 753 (1 ) (578 ) (4,604 ) Financial services 14,138 13,080 27,164 21,610 Corporate and other 16,210 (12,584 ) 20,121 (29,371 ) Income before interest expense and income taxes 46,707 30,751 76,098 31,339 Interest expense 10,955 9,590 21,763 17,699 Income tax provision 14,718 7,606 17,679 8,936 Net income $ 21,034 $ 13,555 $ 36,656 $ 4,704 Loss (income) of associated companies, net of taxes: Corporate and other $ 7,118 $ (1,587 ) $ (2,263 ) $ (3,542 ) Total $ 7,118 $ (1,587 ) $ (2,263 ) $ (3,542 ) Segment depreciation and amortization: Diversified industrial $ 13,296 $ 14,402 $ 26,254 $ 27,950 Energy 4,420 5,083 8,865 10,105 Financial services 101 101 199 201 Corporate and other 39 33 73 65 Total depreciation and amortization $ 17,856 $ 19,619 $ 35,391 $ 38,321

Regulatory Matters

Regulatory Matters	6 Months Ended
	Jun. 30, 2019
Regulatory Matters [Abstract]
Regulatory Matters	REGULATORY MATTERS WebBank is subject to various regulatory capital requirements administered by federal banking agencies. Failure to meet minimum capital requirements can initiate certain actions by regulators that, if undertaken, could have a direct material effect on WebBank's financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, WebBank must meet specific capital guidelines that involve quantitative measures of its assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. WebBank's capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. In July 2013, the Federal Deposit Insurance Corporation approved the final rules implementing the Basel Committee on Banking Supervision's capital guidelines for U.S. banks ("Basel III"). Under the final rules, which began for WebBank on January 1, 2015 and have been fully implemented as of January 1, 2019, minimum requirements increased for both the quantity and quality of capital held by WebBank. The rules include a new common equity Tier 1 capital to risk-weighted assets ratio ("CET1 Ratio") of 4.5% and a capital conservation buffer of 2.5% of risk-weighted assets, which as fully phased-in, effectively results in a minimum CET1 Ratio of 7.0% . Basel III raised the minimum ratio of Tier 1 capital to risk-weighted assets from 4.0% to 6.0% (which, with the capital conservation buffer, effectively results in a minimum Tier 1 capital ratio of 8.5% as fully phased-in), effectively results in a minimum total capital to risk-weighted assets ratio of 10.5% (with the capital conservation buffer fully phased-in), and requires a minimum leverage ratio of 4.0% . Basel III also made changes to risk weights for certain assets and off-balance-sheet exposures. WebBank expects that its capital ratios under Basel III will continue to exceed the well capitalized minimum capital requirements, and such amounts are disclosed in the table below: Amount of Capital Required Actual For Capital Adequacy Purposes Minimum Capital Adequacy With Capital Buffer To Be Well Capitalized Under Prompt Corrective Provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of June 30, 2019 Total Capital (to risk-weighted assets) $ 153,236 19.10 % $ 64,142 8.00 % $ 84,187 10.50 % $ 80,178 10.00 % Tier 1 Capital (to risk-weighted assets) $ 142,972 17.80 % $ 48,107 6.00 % $ 68,151 8.50 % $ 64,142 8.00 % Common Equity Tier 1 Capital (to risk-weighted assets) $ 142,972 17.80 % $ 36,080 4.50 % $ 56,124 7.00 % $ 52,116 6.50 % Tier 1 Capital (to average assets) $ 142,972 15.90 % $ 35,869 4.00 % n/a n/a $ 44,836 5.00 % As of December 31, 2018 Total Capital (to risk-weighted assets) $ 151,799 22.60 % $ 53,807 8.00 % $ 66,418 9.88 % $ 67,258 10.00 % Tier 1 Capital (to risk-weighted assets) $ 143,275 21.30 % $ 40,355 6.00 % $ 52,966 7.88 % $ 53,807 8.00 % Common Equity Tier 1 Capital (to risk-weighted assets) $ 143,275 21.30 % $ 30,266 4.50 % $ 42,877 6.38 % $ 43,718 6.50 % Tier 1 Capital (to average assets) $ 143,275 18.30 % $ 31,250 4.00 % n/a n/a $ 39,063 5.00 %

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	6 Months Ended
	Jun. 30, 2019
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	SUPPLEMENTAL CASH FLOW INFORMATION The amount of Cash, cash equivalents and restricted cash as of June 30, 2019 and 2018 in the consolidated statements of cash flows is reconciled to the Company's consolidated balance sheets as follows: June 30, 2019 2018 Cash and cash equivalents $ 206,171 $ 324,805 Restricted cash — 13,496 Total cash, cash equivalents and restricted cash $ 206,171 $ 338,301 A summary of supplemental cash flow information for the six -month periods ending June 30, 2019 and 2018 is presented in the following table: Six Months Ended June 30, 2019 2018 Cash paid during the period for: Interest $ 25,131 $ 18,779 Taxes $ 2,949 $ 2,759 Non-cash investing and financing activities: Contingent purchase price (future earn-out) associated with the Dunmore acquisition $ — $ 3,800 Issuance of SPLP common units to purchase subsidiary shares from noncontrolling interests $ — $ 3,159 Issuance of SPLP Preferred Units to purchase subsidiary shares from noncontrolling interests $ — $ 3,812

Nature of the Business and Ba_2

Nature of the Business and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements as of June 30, 2019 and for the three and six month periods ended June 30, 2019 and 2018 , which have been prepared by the Company in accordance with the rules and regulations of the Securities and Exchange Commission for interim periods, include the accounts of the Company and its consolidated subsidiaries. In the opinion of management, all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation have been reflected herein. The results of operations for the three and six months ended June 30, 2019 are not necessarily indicative of the operating results for the full year. The accompanying unaudited consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements on Form 10-K for the year ended December 31, 2018, from which the consolidated balance sheet as of December 31, 2018 has been derived. Certain financial information that is normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles, but is not required for interim reporting purposes, has been condensed or omitted. Management must make estimates and assumptions that affect the consolidated financial statements and the related footnote disclosures. While management uses its best judgment, actual results may differ from those estimates. Certain reclassifications have been made to the prior period financial statements and notes to conform to the current period presentation.
New Accounting Pronouncements	New or Recently Adopted Accounting Pronouncements In February 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update No. ("ASU") 2016-02, Leases (Topic 842) . Topic 842 is effective for public companies for annual reporting periods beginning after December 15, 2018, including interim periods within those fiscal years. The new standard establishes a right-of-use ("ROU") model that requires a lessee to record a ROU asset and a lease liability, measured on a discounted basis, on the balance sheet for all leases with terms longer than 12 months. Leases are classified as either finance or operating, with classification affecting the pattern of expense recognition in the statement of income. Originally, entities were required to adopt ASU 2016-02 using a modified retrospective approach, which required prior periods to be presented under this new standard with certain practical expedients available. However, in July 2018, the FASB issued ASU 2018-11, Leases (Topic 842): Targeted Improvements , which allows entities the option of recognizing the cumulative effect of applying the new standard as an adjustment to the opening balance of retained earnings in the year of adoption while continuing to present all prior periods under previous lease accounting guidance. The Company adopted Topic 842 as of January 1, 2019 using the alternative modified transition approach. The Company elected to use the package of practical expedients permitted under the transition guidance, including carryforward of our historical lease classification, no reassessment of whether an expired or existing contract contains an embedded lease, no reassessment of initial direct costs for any leases that existed prior to the date of adoption of the new standard, and to consolidate lease and non-lease components. As a result of the adoption of Topic 842, we recorded a ROU asset and lease liability of $45,357 and $46,024 , respectively, on January 1, 2019. The Company did not record a cumulative effect adjustment to the opening balance of Partners' capital upon the adoption of Topic 842. For additional information, see Note 3 - "Leases." In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This new standard changes the impairment model for most financial assets that are measured at amortized cost and certain other instruments, including trade receivables, from an incurred loss model to an expected loss model and adds certain new required disclosures. Under the expected loss model, entities will recognize estimated credit losses over the entire contractual term of the instrument rather than delaying recognition of credit losses until it is probable the loss has been incurred. In May 2019, the FASB issued ASU 2019-05, Financial Instruments-Credit Losses (Topic 326): Targeted Transition Relief. ASU 2019-05 provides entities with an option to irrevocably elect the fair value option, applied on an instrument-by-instrument basis for eligible instruments, that are within the scope of Subtopic 326-20, upon the adoption of Topic 326. The fair value option election does not apply to held-to-maturity debt securities. The new standards are effective for the Company's 2020 fiscal year with early adoption permitted for all entities in fiscal years beginning after December 15, 2018. The Company is currently evaluating the potential impact of this new guidance; however, it expects that it could have a significant impact on the Company's allowance for loan losses ("ALLL"). In January 2017, the FASB issued ASU 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment . This new standard simplifies subsequent measurements of goodwill by eliminating Step 2 from the goodwill impairment test. Instead, entities will perform their interim or annual goodwill impairment testing by comparing the fair value of a reporting unit with its carrying amount and recognizing an impairment charge based on the amount that the carrying amount exceeds the reporting unit's fair value. The loss recognized should not exceed the total goodwill allocated to the reporting unit. The Company has elected to early adopt this standard as of January 1, 2019; such adoption did not have an impact on the Company's consolidated financial statements. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities . The Company adopted ASU 2017-12 on January 1, 2019. The new standard includes amendments to enhance presentation and disclosures, including eliminating the separate measurement and reporting of hedge ineffectiveness, generally requiring the entire effect of the hedging instrument and hedged item to be presented in the same income statement line item. Amendments in the new standard to reduce the complexity of applying certain aspects of hedge accounting include giving entities additional time to complete certain aspects of their hedge documentation, expanding the nature of hedging relationships that can be subsequently assessed for hedge effectiveness on a qualitative basis, if elected, and simplifying the application of the critical terms match and shortcut methods. Certain aspects of the new standard are applied on a modified retrospective basis including recording a cumulative-effect adjustment in the opening balance of retained earnings for cash flow and net investment hedges, to eliminate the separate measurement of ineffectiveness, if any, to accumulated other comprehensive income or loss ("AOCI") with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year of adoption. The amended presentation and disclosure guidance is required on a prospective basis. The standard also provides a number of one-time transition elections that entities may choose to apply to certain existing hedging relationships without having to de-designate and re-designate the hedging relationship. The Company has elected to continue recording amounts excluded from the assessment of hedge effectiveness in earnings rather than using an amortization approach. For additional details on the Company's derivatives and hedging activities, see Note 10 - "Financial Instruments." In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The new standard provides financial statement preparers with an option to reclassify any stranded tax effects resulting from the Federal Tax Cuts and Jobs Act from AOCI to retained earnings. The amendments in ASU 2018-02 are effective beginning after December 15, 2018, and interim periods within those fiscal years. The Company adopted ASU 2018-02 on January 1, 2019 and elected not to reclassify stranded tax effects. In June 2018, the FASB issued ASU 2018-07, Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting . This new standard provides guidance on how to account for share-based payment transactions with nonemployees in which a grantor acquires goods or services to be used or consumed in the grantor's own operations by issuing equity-based payment awards. The new standard is effective for public companies for annual reporting periods beginning after December 15, 2018, including interim periods within those fiscal years. The Company adopted ASU 2018-07 on January 1, 2019. The adoption did not have an impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement. ASU 2018-13 modifies the disclosure requirements on fair value measurements. The amendments in ASU 2018-13 are effective for the Company's 2020 fiscal year, except that the standard permits an entity to early adopt any removed or modified disclosures upon issuance of ASU No. 2018-13 and delay adoption of the additional disclosures until the effective date. Because ASU 2018-13 affects disclosure only, management does not expect that the full adoption of this standard will have a material impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU 2018-14, Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20): Disclosure Framework-Changes to the Disclosure Requirements for Defined Benefit Plans. ASU 2018-14 modifies the disclosure requirements for employers that sponsor defined benefit pension and other post-retirement plans. The amendments in ASU 2018-14 are effective for the Company's 2021 fiscal year. Because ASU 2018-14 affects disclosure only, management does not expect that the adoption of this standard will have a material impact on the Company's consolidated financial statements. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force) to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). The amendments in ASU 2018-15 are effective for the Company's 2020 fiscal year. The Company adopted ASU 2018-15 on April 1, 2019. The adoption did not have a material impact on the Company's consolidated financial statements.
Disaggregation of Revenues	Disaggregation of Revenues Revenues are disaggregated at the Company's segment level since the segment categories depict how the nature, amount, timing and uncertainty of revenues and cash flows are affected by economic factors. For additional details related to the Company's reportable segments, see Note 18 - "Segment Information."

Revenues Revenues (Tables)

Revenues Revenues (Tables)	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Revenue from any single foreign country was not material to the Company's consolidated financial statements. Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 United States $ 374,650 $ 374,580 $ 719,739 $ 682,520 Foreign (a) 39,553 59,857 81,517 118,162 Total revenue $ 414,203 $ 434,437 $ 801,256 $ 800,682 (a) Foreign revenues are primarily related to the Company's API Group plc and Dunmore Europe GmbH businesses, which are domiciled in the United Kingdom and Germany, respectively.

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Components of Lease Cost	The components of lease cost are as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Operating lease cost $ 3,300 $ 6,667 Short-term lease cost $ 225 $ 531 Finance lease cost: Amortization of right-of-use assets $ 270 $ 520 Interest on lease liabilities 67 128 Total finance lease cost $ 337 $ 648 Supplemental cash flow information related to leases is as follows: Six Months Ended June 30, 2019 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6,640 Operating cash flows from finance leases $ 128 Financing cash flows from finance leases $ 656 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 6,078 Finance leases $ 3,731
Supplemental Balance Sheet Information	Supplemental balance sheet information related to leases is as follows: June 30, 2019 Location on Consolidated Balance Sheet Operating leases Operating lease right-of-use assets $ 44,697 Operating lease right-of-use assets Current operating lease liabilities $ 10,875 Other current liabilities Non-current operating lease liabilities 34,516 Long-term operating lease liabilities Total operating lease liabilities $ 45,391 Finance leases Finance lease assets $ 9,880 Property, plant and equipment, net Current finance lease liabilities $ 1,724 Other current liabilities Non-current finance lease liabilities 7,620 Other non-current liabilities Total finance lease liabilities $ 9,344 Weighted-average remaining lease term Operating leases 8.32 years Finance leases 5.28 years Weighted-average discount rate Operating leases 4.58 % Finance leases 4.20 %
Summary of Operating Lease Maturities	Maturities of lease liabilities after the adoption of Topic 842, as of June 30, 2019 , are as follows: Operating Leases Finance Leases 2019 (excluding the six months ended June 30, 2019) $ 7,535 $ 1,047 2020 10,952 1,961 2021 8,793 1,877 2022 7,111 1,762 2023 5,116 1,744 Thereafter 17,556 2,062 Total lease payments 57,063 10,453 Present value of current lease liabilities 10,875 1,724 Present value of long-term lease liabilities 34,516 7,620 Total present value of lease liabilities 45,391 9,344 Difference between undiscounted cash flows and discounted cash flows $ 11,672 $ 1,109 Future minimum operating lease obligations prior to the adoption of Topic 842, as of December 31, 2018 , were as follows: Payments Due by Period Amount 2019 $ 14,280 2020 11,131 2021 8,975 2022 6,174 2023 3,863 Thereafter 17,867 Total $ 62,290
Summary of Finance Lease Maturities	Maturities of lease liabilities after the adoption of Topic 842, as of June 30, 2019 , are as follows: Operating Leases Finance Leases 2019 (excluding the six months ended June 30, 2019) $ 7,535 $ 1,047 2020 10,952 1,961 2021 8,793 1,877 2022 7,111 1,762 2023 5,116 1,744 Thereafter 17,556 2,062 Total lease payments 57,063 10,453 Present value of current lease liabilities 10,875 1,724 Present value of long-term lease liabilities 34,516 7,620 Total present value of lease liabilities 45,391 9,344 Difference between undiscounted cash flows and discounted cash flows $ 11,672 $ 1,109

Loans Receivable, Including L_2

Loans Receivable, Including Loans Held For Sale (Tables)	6 Months Ended
	Jun. 30, 2019
Receivables [Abstract]
Trade and Other Receivables	Major classifications of loans receivable, including loans held for sale, held by WebBank, as of June 30, 2019 and December 31, 2018 are as follows: Total Current Non-current June 30, 2019 % December 31, 2018 % June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 Loans held for sale $ 178,071 $ 188,143 $ 178,071 $ 188,143 $ — $ — Commercial real estate loans $ 632 — % $ 632 — % — — 632 632 Commercial and industrial 206,815 44 % 146,758 44 % 151,818 81,507 54,997 65,251 Consumer loans 262,645 56 % 188,391 56 % 104,985 89,899 157,660 98,492 Total loans 470,092 100 % 335,781 100 % 256,803 171,406 213,289 164,375 Less: Allowance for loan losses (29,436 ) (17,659 ) (29,436 ) (17,659 ) — — Total loans receivable, net $ 440,656 $ 318,122 227,367 153,747 213,289 164,375 Loans receivable, including loans held for sale (a) $ 405,438 $ 341,890 $ 213,289 $ 164,375 (a) The carrying value is considered to be representative of fair value because the rates of interest are not significantly different from market interest rates for instruments with similar maturities.

Inventories, Net (Tables)

Inventories, Net (Tables)	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Schedule of Inventory, Current	A summary of Inventories, net is as follows: June 30, 2019 December 31, 2018 Finished products $ 52,969 $ 55,723 In-process 30,307 25,392 Raw materials 61,596 58,569 Fine and fabricated precious metal in various stages of completion 20,423 20,790 165,295 160,474 LIFO reserve (2,001 ) (1,624 ) Total $ 163,294 $ 158,850
Inventory Supplemental Disclosure	June 30, 2019 December 31, 2018 Supplemental inventory information: Precious metals stated at LIFO cost $ 8,819 $ 9,538 Precious metals stated under non-LIFO cost methods $ 9,603 $ 9,628 Market value per ounce: Silver $ 15.32 $ 15.51 Gold $ 1,409.00 $ 1,281.65 Palladium $ 1,524.00 $ 1,263.00

Goodwill and Other Intangible_2

Goodwill and Other Intangibles, Net (Tables)	6 Months Ended
	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Reconciliation of the change in the carrying value of goodwill	A reconciliation of the change in the carrying value of goodwill by reportable segment is as follows: Diversified Industrial Energy Financial Services Corporate and Other Total Balance as of December 31, 2018 Gross goodwill $ 205,765 $ 67,143 $ — $ 81 $ 272,989 Accumulated impairments (24,254 ) (64,790 ) — — (89,044 ) Net goodwill 181,511 2,353 — 81 183,945 Acquisitions (a), (b) 2,403 — 6,515 — 8,918 Currency translation adjustments (672 ) — — — (672 ) Balance as of June 30, 2019 Gross goodwill 207,496 67,143 6,515 81 281,235 Accumulated impairments (24,254 ) (64,790 ) — — (89,044 ) Net goodwill $ 183,242 $ 2,353 $ 6,515 $ 81 $ 192,191 (a) Diversified Industrial - Purchase price adjustments related to the 2018 Dunmore acquisition. See Note 4 - "Acquisitions" for additional information. (b) Financial Services - Goodwill related to the National Partners acquisition. See Note 4 - "Acquisitions" for additional information.
Summary of Intangible Assets	A summary of Other intangible assets, net is as follows: June 30, 2019 December 31, 2018 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Customer relationships $ 219,527 $ 103,576 $ 115,951 $ 220,709 $ 95,796 $ 124,913 Trademarks, trade names and brand names 55,318 19,092 36,226 54,950 17,923 37,027 Developed technology, patents and patent applications 31,841 15,805 16,036 31,743 14,435 17,308 Other 17,964 13,276 4,688 17,884 13,591 4,293 Total $ 324,650 $ 151,749 $ 172,901 $ 325,286 $ 141,745 $ 183,541

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract]
Unrealized Gain (Loss) on Investments	The amount of unrealized gains (losses) for the three and six months ended June 30, 2019 and 2018 that relate to equity securities still held as of June 30, 2019 and June 30, 2018 , respectively, was as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Net gains (losses) recognized during the period on equity securities $ 36,377 $ (11,824 ) $ 38,486 $ (25,613 ) Less: Net gains recognized during the period on equity securities sold during the period — 4,197 — 10,961 Unrealized gains (losses) recognized during the period on equity securities still held at the end of the period $ 36,377 $ (16,021 ) $ 38,486 $ (36,574 ) Gross realized gains and losses from sales of marketable securities, which are reported as a component of Realized and unrealized (gains) losses on securities, net in the Company's consolidated statements of income, were as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Gross realized gains $ — $ 6,416 $ — $ 16,090 Gross realized losses — (2,219 ) — (5,129 ) Realized gains, net $ — $ 4,197 $ — $ 10,961
Schedule of Available-for-sale Securities and Equity Method Investments	The following table summarizes the Company's long-term investments as of June 30, 2019 and December 31, 2018 . Ownership % Long-Term Investments Balance (Income) Loss Recorded in the Consolidated Statements of Income Three Months Ended June 30, Six Months Ended June 30, June 30, 2019 December 31, 2018 June 30, 2019 December 31, 2018 2019 2018 2019 2018 Corporate securities (a), (d) $ 199,259 $ 159,841 $ (36,603 ) $ 8,317 $ (38,486 ) $ 24,014 Collateralized debt securities 1,443 1,958 $ — $ — $ — $ — STCN convertible notes (b), (e) 13,437 14,943 $ 1,163 $ (272 ) $ 1,506 $ 42 STCN preferred stock (c), (e) 41,809 39,420 $ 2,049 $ (827 ) $ (2,068 ) $ (8,276 ) Equity method investments: (e) Carried at fair value: STCN common stock 29.4 % 29.6 % 33,093 31,457 $ 3,065 $ (649 ) $ (1,474 ) $ 5,350 Aviat Networks, Inc. ("Aviat") 12.5 % 12.4 % 9,182 8,881 $ 841 $ 147 $ (227 ) $ (702 ) Other 43.8 % 43.8 % 1,223 1,223 $ — $ — $ — $ — Long-term investments carried at fair value 299,446 257,723 Other equity method investments — 321 $ — $ 14 $ — $ 44 Total $ 299,446 $ 258,044 (a) Cost basis totaled $98,969 as of June 30, 2019 and $98,037 as of December 31, 2018 and gross unrealized gains totaled $100,290 and $61,804 as of June 30, 2019 and December 31, 2018 , respectively. (b) Represents investment in STCN convertible notes. The convertible notes outstanding as of December 31, 2018 matured on March 1, 2019. The Company entered into a new convertible note with STCN ("New Note") on February 28, 2019, which matures on March 1, 2024. The cost basis of the New Note totaled $14,943 as of June 30, 2019 and the gross unrealized loss was $1,506 as of June 30, 2019 . The New Note is convertible into shares of STCN's common stock at an initial conversion rate of 421.2655 shares of common stock per $1,000 principal amount of the New Note (which is equivalent to an initial conversion price of approximately $2.37 per share), subject to adjustment upon the occurrence of certain events. The cost basis of the Company's prior investment was $13,262 as of December 31, 2018 and gross unrealized gains totaled $1,681 as of December 31, 2018 . Changes in fair value are recorded in the Company's consolidated statements of income as the Company elected the fair value option to account for this investment. The New Notes, if converted as of June 30, 2019 , when combined with STCN common and preferred shares, also if converted, owned by the Company, would result in the Company having a direct interest of approximately 49.3 % of STCN's outstanding shares. (c) Represents investment in shares of STCN preferred stock with a cost basis of $35,321 . Each share of preferred stock can be converted into shares of STCN's common stock at an initial conversion price equal to $1.96 per share, subject to adjustment upon the occurrence of certain events. Changes in fair value are recorded in the Company's consolidated statements of income as the Company elected the fair value option to account for this investment. (d) (Income) loss from these investments is included in Realized and unrealized (gains) losses on securities, net in the consolidated statements of income. (e) (Income) loss from these investments is included in Loss (income) of associated companies, net of taxes in the consolidated statements of
Schedule of Additional Disclosures of Associated Companies	The following summary balance sheet amounts are for STCN as of April 30, 2019 and July 31, 2018, respectively, and the statement of income amounts are for the three and six months ended April 30, 2019 and 2018, respectively, which are both STCN's nearest corresponding fiscal quarters to the Company's fiscal quarters ended June 30, 2019 and 2018 : (Unaudited) 2019 2018 Summary of balance sheet amounts: Current assets $ 202,441 $ 264,281 Non-current assets 532,309 562,769 Total assets $ 734,750 $ 827,050 Current liabilities $ 220,499 $ 290,612 Non-current liabilities 386,667 393,618 Total liabilities 607,166 684,230 Contingently redeemable preferred stock 35,198 35,192 Equity 92,386 107,628 Total liabilities and equity $ 734,750 $ 827,050 Three Months Ended June 30, Six Months Ended June 30, (Unaudited) 2019 2018 2019 2018 Summary operating results: (a) Net revenue $ 194,003 $ 188,922 $ 400,226 $ 340,041 Gross profit $ 36,861 $ 39,005 $ 74,404 $ 55,955 Net (loss) income (a) $ (9,627 ) $ (10,333 ) $ (21,380 ) $ 54,497 (a) Net income in the 2018 period was favorably impacted by an income tax benefit related to STCN's acquisition of IWCO in December 2017.
Schedule of Held-to-Maturity Securities	The amount and contractual maturities of HTM debt securities are noted in the table below. Actual maturities may differ from expected or contractual maturities because borrowers may have the right to call or prepay obligations with or without penalties. The securities are collateralized by unsecured consumer loans. June 30, 2019 Amortized Cost Gross Unrealized Gains (Losses) Estimated Fair Value Carrying Value Collateralized securities $ 58,144 $ 123 $ 58,267 $ 58,144 Contractual maturities within: One year to five years 42,188 Five years to ten years 14,172 After ten years 1,784 Total $ 58,144 December 31, 2018 Amortized Cost Gross Unrealized Gains (Losses) Estimated Fair Value Carrying Value Collateralized securities $ 48,005 $ (119 ) $ 47,886 $ 48,005 Contractual maturities within: One year to five years 22,866 Five years to ten years 23,189 After ten years 1,950 Total $ 48,005

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Schedule of Long-term and Short-term Debt	Debt consists of the following: June 30, 2019 December 31, 2018 Short term debt: Foreign $ 4,458 $ 3,094 Short-term debt 4,458 3,094 Long-term debt: Credit Agreement 448,274 472,495 Other debt – foreign 625 796 Other debt – domestic 5,375 5,604 Subtotal 454,274 478,895 Less: portion due within one year 10,742 799 Long-term debt 443,532 478,096 Total debt $ 458,732 $ 481,989
Schedule of Maturities of Long-term Debt	Long-term debt as of June 30, 2019 matures in each of the next five years as follows: Total 2019 2020 2021 2022 2023 Thereafter Long-term debt (a) $ 454,274 $ 5,565 $ 14,243 $ 10,120 $ 424,346 $ — $ — (a) As of June 30, 2019 , long term debt of $10,742 is expected to mature over the following twelve months.

Financial Instruments (Tables)

Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Change in Financial Instrument Balance	ctivity is summarized below for financial instrument liabilities and related restricted cash: June 30, 2019 2018 Balance, beginning of period $ 12,434 $ 15,629 Settlement of short sales of corporate securities (14,611 ) (3,100 ) Short sales of corporate securities — 26 Net investment losses 2,177 941 Balance, end of period $ — $ 13,496
Schedule of Outstanding Forward or Future Contracts with Settlement Dates	As of June 30, 2019 , the Company had the following outstanding forward contracts with settlement dates through July 2019. There were no futures contracts outstanding as of June 30, 2019 . Commodity Amount Notional Value Silver 235,615 ounces $ 3,598 Gold 1,969 ounces $ 2,777 Palladium 695 ounces $ 1,078 Copper 225,000 pounds $ 632 Tin 15 metric tons $ 280
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The fair value and carrying amount of derivative instruments on the Company's consolidated balance sheets are as follows: Fair Value of Derivative Assets (Liabilities) June 30, 2019 December 31, 2018 Location on Consolidated Balance Sheet Fair Value Location on Consolidated Balance Sheet Fair Value Derivatives designated as ASC 815 hedges Foreign exchange contracts Accrued liabilities $ (5 ) Accrued liabilities $ (95 ) Commodity contracts Prepaid expenses and other current assets $ 23 Accrued liabilities $ (14 ) Derivatives not designated as ASC 815 hedges Foreign exchange contracts Accrued liabilities $ (445 ) Accrued liabilities $ (81 ) Commodity contracts Accrued liabilities $ (4 ) Accrued liabilities $ (145 ) Economic interests in loans Other non-current assets $ 17,212 Other non-current assets $ 17,156
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The effect of cash flow hedge accounting for foreign currency forward contracts on AOCI for the three and six months ended June 30, 2019 and 2018 is as follows: Location of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Recognized in AOCI on Derivatives Total Change in AOCI for the Period Three Months Ended June 30, Three Months Ended June 30, Three Months Ended June 30, 2019 2018 2019 2018 2019 2018 Diversified industrial net sales $ 256 $ 79 $ (169 ) $ 194 $ (425 ) $ 115 Six Months Ended June 30, Six Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 2019 2018 Diversified industrial net sales $ 373 $ 59 $ 466 $ 359 $ 93 $ 300
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The effects of derivatives not designated as ASC 815 hedging instruments on the consolidated statements of income for the three and six months ended June 30, 2019 and 2018 are as follows: Derivatives Not Designated as Hedging Instruments: Location of Gain (Loss) Recognized in Income Amount of Gain (Loss) Recognized in Income Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Foreign exchange forward contracts Other income (expense), net $ — $ (18 ) $ — $ (14 ) Commodity contracts Other income (expense), net (379 ) 342 (436 ) 440 Economic interests in loans Financial services revenue 3,791 4,083 6,677 7,364 Call options Other income (expense), net — — — 250 Put options Other income (expense), net — — — (3 ) Total $ 3,412 $ 4,407 $ 6,241 $ 8,037

Pension Benefit Plans (Tables)

Pension Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2019
Retirement Benefits [Abstract]
Schedule of Net Benefit Costs	The following table presents the components of pension expense for the Company's significant pension plans. The Company's other pension and post-retirement benefit plans are not significant individually or in the aggregate. Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Interest cost $ 5,470 $ 5,351 $ 10,944 $ 10,729 Expected return on plan assets (6,108 ) (7,018 ) (12,232 ) (14,027 ) Amortization of actuarial loss 2,515 2,539 5,030 5,078 Total $ 1,877 $ 872 $ 3,742 $ 1,780

Capital and Accumulated Other_2

Capital and Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2019
Stockholders' Equity Note [Abstract]
Accumulated Other Comprehensive Income	Changes, net of tax, in AOCI are as follows: Unrealized loss on available-for-sale debt securities Unrealized (loss) gain on derivative financial instruments Cumulative translation adjustments Change in net pension and other benefit obligations Total Balance at December 31, 2018 $ (274 ) $ (277 ) $ (23,476 ) $ (153,217 ) $ (177,244 ) Net other comprehensive income attributable to common unitholders (a) — 518 1,303 — 1,821 Balance at March 31, 2019 (274 ) 241 (22,173 ) (153,217 ) (175,423 ) Net other comprehensive loss attributable to common unitholders (b) — (425 ) (1,797 ) — (2,222 ) Balance at June 30, 2019 $ (274 ) $ (184 ) $ (23,970 ) $ (153,217 ) $ (177,645 ) (a) Net of tax provision of approximately $92 . (b) Net of tax benefit of approximately $90 . Unrealized gain on available-for-sale securities Unrealized (loss) gain on derivative financial instruments Cumulative translation adjustments Change in net pension and other benefit obligations Total Balance at December 31, 2017 $ 91,078 $ (1,901 ) $ (18,259 ) $ (177,085 ) $ (106,167 ) Net other comprehensive income attributable to common unitholders (a), (b) — 170 3,098 — 3,268 Cumulative effect of adopting ASU 2016-01 relating to net unrealized gains and losses on equity securities (c) (91,078 ) — — — (91,078 ) Balance at March 31, 2018 — (1,731 ) (15,161 ) (177,085 ) (193,977 ) Net other comprehensive income (loss) attributable to common unitholders (d), (e) — 104 (3,841 ) 5 (3,732 ) Acquisition of AOCI from noncontrolling interests — (72 ) (290 ) (213 ) (575 ) Balance at June 30, 2018 $ — $ (1,699 ) $ (19,292 ) $ (177,293 ) $ (198,284 ) (a) Net of a tax provision of approximately $68 . (b) Does not include the net unrealized gain on derivative financial instruments of $15 and cumulative translation adjustments of $206 which are attributable to noncontrolling interests. (c) Effective January 1, 2018 upon adoption of ASU 2016-01, a cumulative effect reclassification adjustment was made to remove the net unrealized gains and losses on equity securities from AOCI and reclassify them to Partners' capital.

Net (Loss) Income Per Common _2

Net (Loss) Income Per Common Unit (Tables)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following data was used in computing net income per common unit shown in the Company's consolidated statements of income: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Net income $ 21,034 $ 13,555 $ 36,656 $ 4,704 Net loss (income) attributable to noncontrolling interests in consolidated entities 29 (513 ) 85 (740 ) Net income attributable to common unitholders 21,063 13,042 36,741 3,964 Effect of dilutive securities: Interest expense from SPLP Preferred Units (a), (b) 2,973 2,937 5,945 — Net income attributable to common unitholders – assuming dilution $ 24,036 $ 15,979 $ 42,686 $ 3,964 Net income per common unit – basic Net income attributable to common unitholders $ 0.84 $ 0.50 $ 1.47 $ 0.15 Net income per common unit – diluted Net income attributable to common unitholders $ 0.61 $ 0.42 $ 1.09 $ 0.15 Denominator for net income per common unit – basic 24,982,728 26,147,125 24,915,446 26,205,290 Effect of dilutive securities: Unvested restricted common units — 26,601 190 34,293 SPLP Preferred Units (a) 14,155,871 11,494,299 14,242,874 — Denominator for net income per common unit – diluted (a), (b) 39,138,599 37,668,025 39,158,510 26,239,583 (a) Assumes the SPLP Preferred Units were redeemed in common units as described in Note 12 - "Capital and Accumulated Other Comprehensive Loss." (b) For the three months ended June 30, 2019 , the diluted per unit calculation does not include the impact of 3,448 of unvested restricted common units, and for the six months ended June 30, 2018 , the diluted per unit calculation does not include the impact of 11,152,888 of SPLP Preferred Units, since the impact would have been anti-dilutive.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value, by Balance Sheet Grouping	ssets and liabilities measured at fair value on a recurring basis in the Company's consolidated financial statements as of June 30, 2019 and December 31, 2018 are summarized by type of inputs applicable to the fair value measurements as follows: June 30, 2019 Level 1 Level 2 Level 3 Total Assets: Marketable securities (a) $ 988 $ 451 $ — $ 1,439 Long-term investments (a) 241,533 — 57,913 299,446 Precious metal and commodity inventories recorded at fair value 9,805 — — 9,805 Economic interests in loans — — 17,212 17,212 Commodity contracts on precious metal and commodity inventories — 23 — 23 Warrants — — 1,738 1,738 Total $ 252,326 $ 474 $ 76,863 $ 329,663 Liabilities: Commodity contracts on precious metal and commodity inventories — 4 — 4 Other precious metal liabilities 7,824 — — 7,824 Foreign currency forward exchange contracts — 450 — 450 Total $ 7,824 $ 454 $ — $ 8,278 December 31, 2018 Level 1 Level 2 Level 3 Total Assets: Marketable securities (a) $ 836 $ 603 $ — $ 1,439 Long-term investments (a) 200,179 14,943 42,601 257,723 Investments in certain funds — — 422 422 Precious metal and commodity inventories recorded at fair value 9,884 — — 9,884 Economic interests in loans — — 17,156 17,156 Foreign currency forward exchange contracts — 275 — 275 Warrants — — 1,738 1,738 Total $ 210,899 $ 15,821 $ 61,917 $ 288,637 Liabilities: Financial instrument obligations $ 12,434 $ — $ — $ 12,434 Commodity contracts on precious metal and commodity inventories — 159 — 159 Other precious metal liabilities 8,589 — — 8,589 Foreign currency forward exchange contracts — 450 — 450 Total $ 21,023 $ 609 $ — $ 21,632 (a) For additional detail of the marketable securities and long-term investments see Note 8 - "Investments."
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	Following is a summary of changes in assets measured using Level 3 inputs: Investments in Associated Companies (a) Marketable Securities and Other (b) Total Balance as of December 31, 2018 $ 40,643 $ 21,274 $ 61,917 Purchases 14,943 — 14,943 Sales and cash collections — (7,557 ) (7,557 ) Realized gains — 6,677 6,677 Unrealized gains 883 — 883 Balance as of June 30, 2019 $ 56,469 $ 20,394 $ 76,863 Balance as of December 31, 2017 $ 36,223 $ 25,693 $ 61,916 Purchases — 250 250 Sales and cash collections — (17,378 ) (17,378 ) Realized gains — 11,584 11,584 Unrealized gains 8,276 232 8,508 Unrealized losses — (3,713 ) (3,713 ) Balance as of June 30, 2018 $ 44,499 $ 16,668 $ 61,167 (a) Unrealized gains and losses are recorded in Loss (income) of associated companies, net of taxes in the Company's consolidated statements of income. (b) Realized and unrealized gains and losses are recorded in Realized and unrealized (gains) losses on securities, net or Financial services revenue in the Company's consolidated statements of income.

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Segment information is presented below: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Revenue: Diversified industrial net sales $ 328,537 $ 358,398 $ 640,698 $ 666,016 Energy net revenue 43,532 47,073 82,518 83,665 Financial services revenue 42,134 28,966 78,040 51,001 Total revenue $ 414,203 $ 434,437 $ 801,256 $ 800,682 Income (loss) before interest expense and income taxes: Diversified industrial $ 15,606 $ 30,256 $ 29,391 $ 43,704 Energy 753 (1 ) (578 ) (4,604 ) Financial services 14,138 13,080 27,164 21,610 Corporate and other 16,210 (12,584 ) 20,121 (29,371 ) Income before interest expense and income taxes 46,707 30,751 76,098 31,339 Interest expense 10,955 9,590 21,763 17,699 Income tax provision 14,718 7,606 17,679 8,936 Net income $ 21,034 $ 13,555 $ 36,656 $ 4,704 Loss (income) of associated companies, net of taxes: Corporate and other $ 7,118 $ (1,587 ) $ (2,263 ) $ (3,542 ) Total $ 7,118 $ (1,587 ) $ (2,263 ) $ (3,542 ) Segment depreciation and amortization: Diversified industrial $ 13,296 $ 14,402 $ 26,254 $ 27,950 Energy 4,420 5,083 8,865 10,105 Financial services 101 101 199 201 Corporate and other 39 33 73 65 Total depreciation and amortization $ 17,856 $ 19,619 $ 35,391 $ 38,321

Regulatory Matters (Tables)

Regulatory Matters (Tables)	6 Months Ended
	Jun. 30, 2019
Regulatory Matters [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	Amount of Capital Required Actual For Capital Adequacy Purposes Minimum Capital Adequacy With Capital Buffer To Be Well Capitalized Under Prompt Corrective Provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio As of June 30, 2019 Total Capital (to risk-weighted assets) $ 153,236 19.10 % $ 64,142 8.00 % $ 84,187 10.50 % $ 80,178 10.00 % Tier 1 Capital (to risk-weighted assets) $ 142,972 17.80 % $ 48,107 6.00 % $ 68,151 8.50 % $ 64,142 8.00 % Common Equity Tier 1 Capital (to risk-weighted assets) $ 142,972 17.80 % $ 36,080 4.50 % $ 56,124 7.00 % $ 52,116 6.50 % Tier 1 Capital (to average assets) $ 142,972 15.90 % $ 35,869 4.00 % n/a n/a $ 44,836 5.00 % As of December 31, 2018 Total Capital (to risk-weighted assets) $ 151,799 22.60 % $ 53,807 8.00 % $ 66,418 9.88 % $ 67,258 10.00 % Tier 1 Capital (to risk-weighted assets) $ 143,275 21.30 % $ 40,355 6.00 % $ 52,966 7.88 % $ 53,807 8.00 % Common Equity Tier 1 Capital (to risk-weighted assets) $ 143,275 21.30 % $ 30,266 4.50 % $ 42,877 6.38 % $ 43,718 6.50 % Tier 1 Capital (to average assets) $ 143,275 18.30 % $ 31,250 4.00 % n/a n/a $ 39,063 5.00 %

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	6 Months Ended
	Jun. 30, 2019
Supplemental Cash Flow Elements [Abstract]
Restrictions on Cash and Cash Equivalents	The amount of Cash, cash equivalents and restricted cash as of June 30, 2019 and 2018 in the consolidated statements of cash flows is reconciled to the Company's consolidated balance sheets as follows: June 30, 2019 2018 Cash and cash equivalents $ 206,171 $ 324,805 Restricted cash — 13,496 Total cash, cash equivalents and restricted cash $ 206,171 $ 338,301
Schedule of Cash Flow, Supplemental Disclosures	A summary of supplemental cash flow information for the six -month periods ending June 30, 2019 and 2018 is presented in the following table: Six Months Ended June 30, 2019 2018 Cash paid during the period for: Interest $ 25,131 $ 18,779 Taxes $ 2,949 $ 2,759 Non-cash investing and financing activities: Contingent purchase price (future earn-out) associated with the Dunmore acquisition $ — $ 3,800 Issuance of SPLP common units to purchase subsidiary shares from noncontrolling interests $ — $ 3,159 Issuance of SPLP Preferred Units to purchase subsidiary shares from noncontrolling interests $ — $ 3,812

Nature of the Business and Ba_3

Nature of the Business and Basis of Presentation (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Decrease in partner's capital	$ (522,411,000)	$ (528,435,000)	$ (522,411,000)	$ (528,435,000)	$ (503,394,000)	$ (492,508,000)	$ (531,711,000)		$ (540,172,000)
Income tax provision	14,718,000	7,606,000	17,679,000	8,936,000
Income of associated companies, net of taxes	7,118,000	(1,587,000)	(2,263,000)	(3,542,000)
Net (loss) income	21,034,000	$ 13,555,000	36,656,000	4,704,000
Increase in other current liabilities	28,074,000		28,074,000			$ 21,943,000
Operating lease right-of-use assets	44,697,000		44,697,000
Operating lease liability	45,391,000		45,391,000
Accounting Standards Update 2016-02
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Operating lease right-of-use assets	45,357,000		45,357,000
Operating lease liability	46,024,000		$ 46,024,000
Adjustment For Tax Basis | Disposed of by Sale, Not Discontinued Operations | Arlon LLC
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Decrease in partner's capital								$ 26,864,000
Increase in other current liabilities								$ 26,864,000
Adjustment For Tax Basis | Disposed of by Sale, Not Discontinued Operations | Arlon LLC | Out-of-Period Adjustment
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Income tax provision	$ 1,456,000
Steel Connect, Inc (STCN) | Out-of-Period Adjustment
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Income of associated companies, net of taxes				7,666,000
Net (loss) income				$ (6,504,000)

Revenues - Disaggregation of Re

Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Total revenue	$ 414,203	$ 434,437	$ 801,256	$ 800,682
United States
Disaggregation of Revenue [Line Items]
Total revenue	374,650	374,580	719,739	682,520
Foreign
Disaggregation of Revenue [Line Items]
Total revenue	$ 39,553	$ 59,857	$ 81,517	$ 118,162

Revenues (Details)

Revenues (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Contract asset	$ 9,161	$ 8,969
Contract liability	7,779	$ 5,900
Increase in contract liability	10,916
Revenue recognized	$ 7,543

Leases - Narrative (Details)

Leases - Narrative (Details)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Remaining lease term	54 years

Leases - Lease Cost (Details)

Leases - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating lease cost	$ 3,300	$ 6,667
Short-term lease cost	225	531
Finance lease cost:
Amortization of right-of-use assets	270	520
Interest on lease liabilities	67	128
Total finance lease cost	$ 337	$ 648

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Leases [Abstract]
Operating cash flows from operating leases	$ 6,640
Operating cash flows from finance leases	128
Financing cash flows from finance leases	656
Operating leases	6,078
Finance leases	$ 3,731

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) $ in Thousands	Jun. 30, 2019USD ($)
Operating leases
Operating lease right-of-use assets	$ 44,697
Current operating lease liabilities	10,875
Non-current operating lease liabilities	34,516
Total operating lease liabilities	45,391
Finance leases
Finance lease assets	9,880
Current finance lease liabilities	1,724
Non-current finance lease liabilities	7,620
Total finance lease liabilities	$ 9,344
Weighted-average remaining lease term
Operating leases	8 years 3 months 27 days
Finance leases	5 years 3 months 10 days
Weighted-average discount rate
Operating leases	4.58%
Finance leases	4.20%

Leases - Future Lease Obligatio

Leases - Future Lease Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Leases [Abstract]
2019		$ 14,280
2020		11,131
2021		8,975
2022		6,174
2023		3,863
Thereafter		17,867
Total		$ 62,290
Operating Leases
2019 (excluding the three months ended March 31, 2019)	$ 7,535
2020	10,952
2021	8,793
2022	7,111
2023	5,116
Thereafter	17,556
Total lease payments	57,063
Operating Lease, Liability, Current	10,875
Long-term operating lease liabilities	34,516
Total operating lease liabilities	45,391
Difference between undiscounted cash flows and discounted cash flows	11,672
Finance Leases
2019 (excluding the three months ended March 31, 2019)	1,047
2020	1,961
2021	1,877
2022	1,762
2023	1,744
Thereafter	2,062
Total lease payments	10,453
Present value of current lease liabilities	1,724
Present value of long-term lease liabilities	7,620
Total finance lease liabilities	9,344
Difference between undiscounted cash flows and discounted cash flows	$ 1,109

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) - USD ($) $ in Thousands	Apr. 01, 2019	Jun. 01, 2018	Feb. 16, 2018	Jun. 30, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill				$ 192,191	$ 183,945
PST Group Inc.
Business Acquisition [Line Items]
Fair value of consideration paid		$ 4,620
Dunmore Acquisition
Business Acquisition [Line Items]
Fair value of consideration paid			$ 69,604
Intangible assets			600	$ 17,300
Goodwill			15,409
Goodwill expected to be deductible for tax purposes			7,126
Inventories			7,700
Property, plant and equipment			30,600
Goodwill, not tax deductible			8,283
Dunmore Acquisition | Maximum
Business Acquisition [Line Items]
Fair value of consideration paid			80,000
Trade Names | Dunmore Acquisition
Business Acquisition [Line Items]
Intangible assets			3,300
Useful life				10 years
Customer Relationships | Dunmore Acquisition
Business Acquisition [Line Items]
Intangible assets			10,100
Useful life				15 years
Order or Production Backlog | Dunmore Acquisition
Business Acquisition [Line Items]
Intangible assets			$ 3,300
Useful life				4 months
WebBank | National Partners
Business Acquisition [Line Items]
Fair value of consideration paid	$ 47,725
Loans payable	10,000
Receivables	37,195
Intangible assets	2,230
Goodwill	6,515
Goodwill expected to be deductible for tax purposes	6,515
WebBank | Agent Relationships | National Partners
Business Acquisition [Line Items]
Intangible assets	1,800
WebBank | Trade Names | National Partners
Business Acquisition [Line Items]
Intangible assets	$ 430

Loans Receivable, Including L_3

Loans Receivable, Including Loans Held For Sale - Loans Receivable (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Receivable [Line Items]
Financing receivable, including loans held for sale, gross, total	$ 470,092,000		$ 335,781,000
Financing receivable, ratio to total, including loans held for sale (as a percent)	100.00%		100.00%
Financing receivable, gross, current	$ 256,803,000		$ 171,406,000
Financing receivable, gross, non-current	213,289,000		164,375,000
Allowance for loan losses, total	(29,436,000)		(17,659,000)
Allowance for loan losses, current	(29,436,000)		(17,659,000)
Allowance for loan losses, non-current	0		0
Total loans receivable, net	440,656,000		318,122,000
Loans receivable, net, current	227,367,000		153,747,000
Loans receivable, net, noncurrent	213,289,000		164,375,000
Loans receivable, including loans held for sale, current	405,438,000		341,890,000
Loans receivable, including loans held for sale, non-current	213,289,000		164,375,000
Pledged as collateral	59,170,000		56,581,000
Increase in loans held for sale	11,296,371	$ 9,497,762
Loans held for sale
Receivable [Line Items]
Financing receivable, including loans held for sale, gross, total	$ 178,071,000		$ 188,143,000
Financing receivable, ratio to total, including loans held for sale (as a percent)
Financing receivable, gross, current	$ 178,071,000		$ 188,143,000
Financing receivable, gross, non-current	0		0
Commercial real estate loans
Receivable [Line Items]
Financing receivable, including loans held for sale, gross, total	$ 632,000		$ 632,000
Financing receivable, ratio to total, including loans held for sale (as a percent)	0.00%		0.00%
Financing receivable, gross, current	$ 0		$ 0
Financing receivable, gross, non-current	632,000		632,000
Commercial and industrial
Receivable [Line Items]
Financing receivable, including loans held for sale, gross, total	$ 206,815,000		$ 146,758,000
Financing receivable, ratio to total, including loans held for sale (as a percent)	44.00%		44.00%
Financing receivable, gross, current	$ 151,818,000		$ 81,507,000
Financing receivable, gross, non-current	54,997,000		65,251,000
Consumer loans
Receivable [Line Items]
Financing receivable, including loans held for sale, gross, total	$ 262,645,000		$ 188,391,000
Financing receivable, ratio to total, including loans held for sale (as a percent)	56.00%		56.00%
Financing receivable, gross, current	$ 104,985,000		$ 89,899,000
Financing receivable, gross, non-current	157,660,000		98,492,000
WebBank
Receivable [Line Items]
Servicing asset	3,013,000		$ 3,044,000
Proceeds from loans held for sale	$ 11,306,443	$ 9,475,608

Inventories, Net - Summary of I

Inventories, Net - Summary of Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Finished products	$ 52,969	$ 55,723
In-process	30,307	25,392
Raw materials	61,596	58,569
Fine and fabricated precious metal in various stages of completion	20,423	20,790
Inventory, before LIFO reserve	165,295	160,474
LIFO reserve	(2,001)	(1,624)
Inventory, Net	$ 163,294	$ 158,850

Inventories, Net - Narrative (D

Inventories, Net - Narrative (Details) $ in Thousands	Jun. 30, 2019USD ($)
Bank of Nova Scotia | Consignment Agreement | Silver
Inventory [Line Items]
Merchandise under consignment	$ 6,700

Inventories, Net - Supplemental

Inventories, Net - Supplemental Inventory Information (Details) $ in Thousands	Jun. 30, 2019USD ($)$ / oz	Dec. 31, 2018USD ($)$ / oz
Inventory Disclosure [Abstract]
Precious metals stated at LIFO cost | $	$ 8,819	$ 9,538
Precious metals stated under non-LIFO cost methods | $	$ 9,603	$ 9,628
Market value per ounce, Silver (in dollars per ounce)	15.32	15.51
Market value per ounce, Gold (in dollars per ounce)	1,409	1,281.65
Market value per ounce, Palladium (in dollars per ounce)	1,524	1,263

Goodwill and Other Intangible_3

Goodwill and Other Intangibles, Net - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Jun. 30, 2019
Goodwill [Line Items]
Gross goodwill	$ 272,989	$ 281,235
Accumulated impairments	(89,044)	(89,044)
Net goodwill	183,945	192,191
Acquisitions	8,918
Currency translation adjustment	(672)
Diversified Industrial
Goodwill [Line Items]
Gross goodwill	205,765	207,496
Accumulated impairments	(24,254)	(24,254)
Net goodwill	181,511	183,242
Acquisitions	2,403
Currency translation adjustment	(672)
Energy net revenue
Goodwill [Line Items]
Gross goodwill	67,143	67,143
Accumulated impairments	(64,790)	(64,790)
Net goodwill	2,353	2,353
Acquisitions	0
Currency translation adjustment	0
Financial Services
Goodwill [Line Items]
Gross goodwill	0	6,515
Accumulated impairments	0	0
Net goodwill	0	6,515
Acquisitions	6,515
Currency translation adjustment	0
Corporate and Other
Goodwill [Line Items]
Gross goodwill	81	81
Accumulated impairments	0	0
Net goodwill	81	$ 81
Acquisitions	0
Currency translation adjustment	$ 0

Goodwill and Other Intangible_4

Goodwill and Other Intangibles, Net - Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 324,650	$ 325,286
Accumulated Amortization	151,749	141,745
Net	172,901	183,541
Other intangible assets, net	172,901	183,541
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	219,527	220,709
Accumulated Amortization	103,576	95,796
Net	115,951	124,913
Trademarks, trade names and brand names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	55,318	54,950
Accumulated Amortization	19,092	17,923
Net	36,226	37,027
Developed technology, patents and patent applications
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	31,841	31,743
Accumulated Amortization	15,805	14,435
Net	16,036	17,308
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	17,964	17,884
Accumulated Amortization	13,276	13,591
Net	$ 4,688	$ 4,293

Goodwill and Other Intangible_5

Goodwill and Other Intangibles, Net - Indefinite Lived Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Trademarks with indefinite lives	$ 11,320		$ 11,320		$ 11,320
Amortization expense	$ 5,638	$ 7,822	$ 11,104	$ 15,173

Investments - Short-Term Invest

Investments - Short-Term Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Marketable securities	$ 1,439		$ 1,439		$ 1,439
Steel Excel
Debt Securities, Available-for-sale [Line Items]
Securities sold during the period	$ 0	$ 12,300	$ 0	$ 46,027

Investments - Gross Realized Ga

Investments - Gross Realized Gains and Losses (Details) - Steel Excel Inc. - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Gain (Loss) on Securities [Line Items]
Gross realized gains	$ 0	$ 6,416	$ 0	$ 16,090
Gross realized losses	0	(2,219)	0	(5,129)
Realized gains, net	$ 0	$ 4,197	$ 0	$ 10,961

Investments - Long-Term Investm

Investments - Long-Term Investments (Details) $ / shares in Units, $ in Thousands	Feb. 28, 2019$ / shares	Dec. 15, 2017$ / shares	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Investments in Associated Companies:
Long-Term Investments Balance			$ 299,446		$ 299,446		$ 257,723
(Income) Loss Recorded in the Consolidated Statements of Income
Carried at cost:
Total			$ 299,446		$ 299,446		$ 258,044
Steel Connect, Inc (STCN)
Investments in Associated Companies:
Ownership percentage			29.40%		29.40%		29.60%
Long-Term Investments Balance			$ 33,093		$ 33,093		$ 31,457
(Income) Loss Recorded in the Consolidated Statements of Income			$ 3,065	(649)	$ (1,474)	5,350
Aviat Networks, Inc. (Aviat)
Investments in Associated Companies:
Ownership percentage			12.50%		12.50%		12.40%
Long-Term Investments Balance			$ 9,182		$ 9,182		$ 8,881
(Income) Loss Recorded in the Consolidated Statements of Income			$ 841	147	$ (227)	(702)
Other
Investments in Associated Companies:
Ownership percentage			43.80%		43.80%		43.80%
Long-Term Investments Balance			$ 1,223		$ 1,223		$ 1,223
(Income) Loss Recorded in the Consolidated Statements of Income			0	0	0	0
Other equity method investments
Investments in Associated Companies:
Long-Term Investments Balance			0		0		321
(Income) Loss Recorded in the Consolidated Statements of Income			0	14	0	44
Corporate securities
Carried at cost:
Cost			98,969		98,969
Corporate securities | Net investment (loss) gain
Equity securities - U.S.
Long-Term Investments Balance			199,259		199,259		159,841
(Income) Loss Recorded in the Consolidated Statements of Income			(36,603)	8,317	(38,486)	24,014
Corporate securities | API Group plc (API)
Carried at cost:
Cost							98,037
Gross Unrealized Gains			100,290		100,290		61,804
Collateralized debt securities | Net investment (loss) gain
Equity securities - U.S.
Long-Term Investments Balance			1,443		1,443		1,958
(Income) Loss Recorded in the Consolidated Statements of Income			0	0	0	0
Convertible notes | Steel Connect, Inc (STCN)
Equity securities - U.S.
Long-Term Investments Balance			13,437		13,437		14,943
(Income) Loss Recorded in the Consolidated Statements of Income			1,163	(272)	1,506	42
Corporate obligations | API Group plc (API)
Carried at cost:
Cost			14,943		14,943		13,262
Gross Unrealized Gains							1,681
Gross unrealized loss			1,506		1,506
Preferred stock | Steel Connect, Inc (STCN)
Equity securities - U.S.
Long-Term Investments Balance			41,809		41,809		$ 39,420
(Income) Loss Recorded in the Consolidated Statements of Income			2,049	$ (827)	(2,068)	$ (8,276)
Carried at cost:
Cost			$ 35,321		$ 35,321
Debt conversion price (in dollars per share) | $ / shares		$ 1.96
Ownership percentage if converted		49.30%
Senior Notes | Convertible Senior Note Due 2024 | Common Stock | Steel Connect, Inc (STCN)
Carried at cost:
Debt Instrument, Convertible, Conversion Ratio	0.4213
Senior Notes | Steel Connect, Inc (STCN) | Convertible Senior Note Due 2024 | Common Stock | Steel Connect, Inc (STCN)
Carried at cost:
Debt conversion price (in dollars per share) | $ / shares	$ 2.37

Investments - Equity Securities

Investments - Equity Securities (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Net gains (losses) recognized during the period on equity securities	$ 36,377	$ (11,824,000)	$ 38,486,000	$ (25,613,000)
Less: Net gains recognized during the period on equity securities sold during the period	0	4,197,000	0	10,961,000
Unrealized gains (losses) recognized during the period on equity securities still held at the end of the period	$ 36,377	$ (16,021,000)	$ 38,486,000	$ (36,574,000)

Investments - Additional Disclo

Investments - Additional Disclosures Related to Associated Company Financial Statements (Details) - Multiple equity method investments - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Summary of balance sheet amounts:
Current assets	$ 202,441		$ 202,441		$ 264,281
Non-current assets	532,309		532,309		562,769
Total assets	734,750		734,750		827,050
Current liabilities	220,499		220,499		290,612
Non-current liabilities	386,667		386,667		393,618
Total liabilities	607,166		607,166		684,230
Contingently redeemable preferred stock	35,198		35,198		35,192
Equity	92,386		92,386		107,628
Total liabilities and equity	734,750		734,750		$ 827,050
Summary operating results: (a)
Net revenue	194,003	$ 188,922	400,226	$ 340,041
Gross profit	36,861	39,005	74,404	55,955
Net (loss) income (a)	$ (9,627)	$ (10,333)	$ (21,380)	$ 54,497

Investments - Other Investments

Investments - Other Investments - Related Party (Details) - WebBank - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Held to maturity securities	$ 58,144	$ 48,005
Gross unrealized gain	123
Gross unrealized loss		119
Maturities held one through five years	42,188	22,866
Maturities between years five and ten	14,172	23,189
Maturities, after ten years	1,784	1,950
Fair value	$ 58,267	$ 47,886

Debt - Long-term and Short-term

Debt - Long-term and Short-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt, Long-term and Short-term, Combined Amount [Abstract]
Short-term debt	$ 4,458	$ 3,094
Total	454,274	478,895
Less: portion due within one year	10,742	799
Long-term debt	443,532	478,096
Total debt	458,732	481,989
Loans Payable | Revolving Credit Facility
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total	448,274	472,495
Loans Payable | Revolving Credit Facility | Handy & Harman Ltd. (HNH)
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total	625	796
Other Domestic Debt | Handy & Harman Ltd. (HNH)
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total	5,375	5,604
Foreign Debt
Debt, Long-term and Short-term, Combined Amount [Abstract]
Short-term debt	$ 4,458	$ 3,094

Debt - Maturities (Details)

Debt - Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
Current portion of long-term debt	$ 10,742	$ 799
Total	454,274	$ 478,895
2019	5,565
2020	14,243
2021	10,120
2022	424,346
2023	0
Thereafter	$ 0

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($)	6 Months Ended
	Jun. 30, 2019	Nov. 14, 2017
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 500,000,000
Weighted average interest rate	4.86%
Remaining borrowing capacity	$ 51,300,000
Revolving Credit Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
Revolving Credit Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.50%
Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 200,000
Amortization percentage	5.00%
Sublimit for Issuance of Swing Loans
Debt Instrument [Line Items]
Maximum borrowing capacity		55,000,000
Standby Letters of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 50,000,000
Line of credit	$ 10,096,000
Letter of Credit
Debt Instrument [Line Items]
Line of credit	2,795,000
Environmental and Other Matters
Debt Instrument [Line Items]
Line of credit	$ 7,301,000

Financial Instruments - Narrati

Financial Instruments - Narrative (Details) € in Thousands, £ in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)oz	Jun. 30, 2018USD ($)	Jun. 30, 2019EUR (€)	Jun. 30, 2019GBP (£)	Dec. 31, 2018USD ($)
Derivatives, Fair Value [Line Items]
Payments for purchased put option	$ 14,611	$ 0
Foreign Exchange Contracts and Short Sale of Securities | Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 0				$ 12,434
Silver, Ounces, Copper Contracts | Commodity contracts | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Amount | oz	13,650
CoSine Communications, Inc. (CoSine) | Foreign exchange forward contracts
Derivatives, Fair Value [Line Items]
Notional Value | £				£ 13,450
WebBank
Derivatives, Fair Value [Line Items]
Undisbursed loan commitment	$ 168,347				$ 130,697
Cash Flow Hedging | CoSine Communications, Inc. (CoSine) | Foreign Exchange Future
Derivatives, Fair Value [Line Items]
Notional Value | €			€ 5,500
Minimum
Derivatives, Fair Value [Line Items]
Derivative, remaining maturity	3 years
Maximum
Derivatives, Fair Value [Line Items]
Derivative, remaining maturity	5 years

Financial Instruments - Roll Fo

Financial Instruments - Roll Forward (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Foreign Currency Financial Liabilities and Related Restricted Cash [Roll Forward]
Settlement of short sales of corporate securities	$ (14,611)	$ 0
Financial Instruments and Restricted Cash | Not Designated as Hedging Instrument
Foreign Currency Financial Liabilities and Related Restricted Cash [Roll Forward]
Balance, beginning of period	12,434	15,629
Settlement of short sales of corporate securities	(14,611)	(3,100)
Short sales of corporate securities	0	26
Net investment losses	2,177	941
Balance, end of period	$ 0	$ 13,496

Financial Instruments - Commodi

Financial Instruments - Commodity Contracts (Details) - Commodity $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)ozlbT
Silver, Ounces
Derivative [Line Items]
Amount | oz	235,615
Notional Value	$ 3,598
Gold, Ounces | Not Designated as Hedging Instrument
Derivative [Line Items]
Amount | oz	1,969
Notional Value	$ 2,777
Palladium, Ounces | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	1,078
Copper, Pounds
Derivative [Line Items]
Notional Value	$ 632
Copper, Pounds | Not Designated as Hedging Instrument
Derivative [Line Items]
Amount | lb	225,000
Tin, Metric Tons | Not Designated as Hedging Instrument
Derivative [Line Items]
Amount | T	15
Notional Value	$ 280

Financial Instruments - Balance

Financial Instruments - Balance Sheet Location (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Foreign exchange forward contracts | Designated as Hedging Instrument | Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative assets	$ (5)
Derivative liabilities		$ (95)
Foreign exchange forward contracts | Not Designated as Hedging Instrument | Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative assets	(445)
Derivative liabilities		(81)
Commodity contracts | Designated as Hedging Instrument | Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	23	(14)
Commodity contracts | Not Designated as Hedging Instrument | Accrued liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	(4)	(145)
Economic interests in loans | Not Designated as Hedging Instrument | Other non-current assets
Derivatives, Fair Value [Line Items]
Derivative assets	$ 17,212
Derivative liabilities		$ 17,156

Financial Instruments - Cash Fl

Financial Instruments - Cash Flow Hedges (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income	$ 21,034	$ 15,622	$ 13,555	$ (8,851)	$ 36,656	$ 4,704
Amount of Gain (Loss) Recognized in AOCI on Derivatives	414,203		434,437		801,256	800,682
Net income	21,034		13,555		36,656	4,704
Diversified Industrial
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives	328,537		358,398		640,698	666,016
Diversified Industrial | Amount of Gain (Loss) Reclassified from AOCI into Income | Foreign exchange forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives	(169)		194		466	359
Net income	(425)		115		93	300
Amount of Gain (Loss) Reclassified from AOCI into Income | Amount of Gain (Loss) Reclassified from AOCI into Income | Foreign exchange forward contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income	$ 256		$ 79		$ 373	$ 59

Financial Instruments - Income

Financial Instruments - Income Statement Location (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	$ 3,412	$ 4,407	$ 6,241	$ 8,037
Foreign exchange forward contracts | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	0	(18)	0	(14)
Commodity contracts | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	(379)	342	(436)	440
Economic interests in loans | Financial services revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	3,791	4,083	6,677	7,364
Short call options | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	0	0	0	250
Put options | Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss)	$ 0	$ 0	$ 0	$ (3)

Pension and Other Post-Retire_2

Pension and Other Post-Retirement Benefits - Components of Pension Expense and Other Postretirement Benefit Expense (Details) - Pension Plans, Defined Benefit - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Defined Benefit Plans Disclosure [Line Items]
Interest cost	$ 5,470	$ 5,351	$ 10,944	$ 10,729
Expected return on plan assets	(6,108)	(7,018)	(12,232)	(14,027)
Amortization of actuarial loss	2,515	2,539	5,030	5,078
Total	$ 1,877	$ 872	$ 3,742	$ 1,780

Pension and Other Post-Retire_3

Pension and Other Post-Retirement Benefits - Narrative (Details) - Pension Plans, Defined Benefit $ in Thousands	Jun. 30, 2019USD ($)
Defined Benefit Plan, Expected Future Employer Contributions [Abstract]
Remainder of 2019	$ 19,300
2020	35,600
2021	34,900
2022	37,600
2023	29,400
Thereafter	$ 23,700

Capital and Accumulated Other_3

Capital and Accumulated Other Comprehensive Loss - Narrative (Details) - USD ($)	1 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	May 24, 2018	Dec. 07, 2016	Jan. 02, 2012
Class of Stock [Line Items]
Common units outstanding (in shares)		25,011,142		25,294,003
Preferred Stock, Liquidation Preference Per Share		$ 25
Purchase of subsidiary shares from noncontrolling interests		$ 0	$ 10,666,000
Common units issued (in shares)		25,011,142		25,294,003
Units issued in acquisition of WFHC noncontrolling interests	$ 13,278,000
Purchases of the Company's common units	$ 6,306,000	$ 6,721,000	6,660,000
Incentive units granted, percentage of outstanding common units							100.00%
Class A
Class of Stock [Line Items]
Common units outstanding (in shares)		25,011,142
Common Units
Class of Stock [Line Items]
Authorized amount						$ 3,000,000
Treasury stock (in shares)		505,336
Treasury stock repurchased		$ 6,721,000
Units issued in the acquisition of WFHC noncontrolling interests (in shares)	185,407
Series A Preferred Units
Class of Stock [Line Items]
Stated interest rate				6.00%
Preferred unit dividend		$ 5,945,000	$ 5,800,000
Debt Instrument, Term				9 years
Repurchase period in force				60 days
Financial instruments subject to mandatory redemption, settlement terms, maximum number of shares				1,600,000
Preferred units outstanding		7,927,288
Units issued in the acquisition of WFHC noncontrolling interests (in shares)	186,271
2018 Incentive Award Plan
Class of Stock [Line Items]
Shares authorized					500,000
Shares granted (in shares)		207,499
Unearned compensation expense		$ 2,905,000

Capital and Accumulated Other_4

Capital and Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of year	$ 503,394	$ 492,508	$ 531,711	$ 540,172	$ 492,508	$ 540,172
Other comprehensive income (loss)	(2,222)		(3,972)		(401)	(483)
Balance at end of year	522,411	503,394	528,435	531,711	522,411	528,435
Unrealized loss on available-for-sale debt securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of year	(274)	(274)	0	91,078	(274)	91,078
Other comprehensive income (loss)	0	0	0	0
Cumulative effect of adopting ASC 2016-01 relating to net unrealized gains/losses on equity securities				(91,078)
Acquisition of AOCI from noncontrolling interests			0
Balance at end of year	(274)	(274)	0	0	(274)	0
Unrealized (loss) gain on derivative financial instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of year	241	(277)	(1,731)	(1,901)	(277)	(1,901)
Other comprehensive income (loss)	(425)	518	104	170
Cumulative effect of adopting ASC 2016-01 relating to net unrealized gains/losses on equity securities				0
Acquisition of AOCI from noncontrolling interests			(72)
Balance at end of year	(184)	241	(1,699)	(1,731)	(184)	(1,699)
Cumulative translation adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of year	(22,173)	(23,476)	(15,161)	(18,259)	(23,476)	(18,259)
Other comprehensive income (loss)	(1,797)	1,303	(3,841)	3,098
Cumulative effect of adopting ASC 2016-01 relating to net unrealized gains/losses on equity securities				0
Acquisition of AOCI from noncontrolling interests			(290)
Balance at end of year	(23,970)	(22,173)	(19,292)	(15,161)	(23,970)	(19,292)
Change in net pension and other benefit obligations
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of year	(153,217)	(153,217)	(177,085)	(177,085)	(153,217)	(177,085)
Other comprehensive income (loss)	0	0	5	0
Cumulative effect of adopting ASC 2016-01 relating to net unrealized gains/losses on equity securities				0
Acquisition of AOCI from noncontrolling interests			(213)
Balance at end of year	(153,217)	(153,217)	(177,293)	(177,085)	(153,217)	(177,293)
Total
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of year	(175,423)	(177,244)	(193,977)	(106,167)	(177,244)	(106,167)
Other comprehensive income (loss)	(2,222)	1,821	(3,732)	3,268
Cumulative effect of adopting ASC 2016-01 relating to net unrealized gains/losses on equity securities				(91,078)
Acquisition of AOCI from noncontrolling interests			(575)
Balance at end of year	(177,645)	(175,423)	(198,284)	(193,977)	$ (177,645)	$ (198,284)
Unrealized loss on derivative financial instruments (NCI)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Acquisition of AOCI from noncontrolling interests			11	15
Tax	$ 90	$ 92	32	68
Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Acquisition of AOCI from noncontrolling interests			(246)	$ 206
Accumulated Defined Benefit Plans Adjustment Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Acquisition of AOCI from noncontrolling interests			$ (5)

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income tax provision	$ 14,718	$ 7,606	$ 17,679	$ 8,936

Net (Loss) Income Per Common _3

Net (Loss) Income Per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Net income	$ 21,034	$ 13,555	$ 36,656	$ 4,704
Net loss (income) attributable to noncontrolling interests in consolidated entities	29	(513)	85	(740)
Net income attributable to common unitholders	21,063	13,042	36,741	3,964
Interest expense form SPLP Preferred Units	2,973	2,937	5,945	0
Net income attributable to common unitholders – assuming dilution	$ 24,036	$ 15,979	$ 42,686	$ 3,964
Net income per common unit – basic
Net (loss) income attributable to common unitholders (in dollar per share)	$ 0.84	$ 0.50	$ 1.47	$ 0.15
Net income per common unit – diluted
Net income attributable to common unitholders (in dollars per share)	$ 0.61	$ 0.42	$ 1.09	$ 0.15
Denominator for net income per common unit - basic (in shares)	24,982,728	26,147,125	24,915,446	26,205,290
Effect of dilutive securities:
SPLP Preferred Units (in shares)	14,155,871	11,494,299	14,242,874	0
Denominator for net income per common unit - diluted (in shares)	39,138,599	37,668,025	39,158,510	26,239,583
Preferred Units
Effect of dilutive securities:
Antidilutive units excluded from computation of earnings per share (in shares)				11,152,888
Restricted Stock Units (RSUs)
Effect of dilutive securities:
Unvested restricted common units (in shares)	0	26,601	190	34,293
Antidilutive units excluded from computation of earnings per share (in shares)			3,448

Fair Value Measurements - Hiera

Fair Value Measurements - Hierarchy Table (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Warrants
Assets:
Derivative asset total		$ 1,738
Fair Value, Measurements, Recurring
Assets:
Derivative asset total	$ 329,663	288,637
Liabilities:
Total	8,278	21,632
Fair Value, Measurements, Recurring | Marketable securities
Assets:
Derivative asset total	1,439	1,439
Fair Value, Measurements, Recurring | Long-term investments
Assets:
Derivative asset total	299,446	257,723
Fair Value, Measurements, Recurring | Investments in certain funds
Assets:
Derivative asset total		422
Fair Value, Measurements, Recurring | Precious metal and commodity inventories recorded at fair value
Assets:
Derivative asset total	9,805	9,884
Fair Value, Measurements, Recurring | Economic interests in loans
Assets:
Derivative asset total	17,212	17,156
Fair Value, Measurements, Recurring | Commodity contracts on precious metal and commodity inventories
Assets:
Derivative asset total	23
Liabilities:
Financial instruments		159
Fair Value, Measurements, Recurring | Warrants
Assets:
Derivative asset total	1,738
Fair Value, Measurements, Recurring | Financial instrument obligations
Liabilities:
Financial instruments		12,434
Fair Value, Measurements, Recurring | Short call options
Liabilities:
Financial instruments	4
Fair Value, Measurements, Recurring | Other precious metal liabilities
Liabilities:
Financial instruments	7,824	8,589
Fair Value, Measurements, Recurring | Foreign currency forward exchange contracts
Assets:
Derivative asset total		275
Liabilities:
Financial instruments	450	450
Fair Value, Measurements, Recurring | Level 1
Assets:
Derivative asset total	252,326	210,899
Liabilities:
Total	7,824	21,023
Fair Value, Measurements, Recurring | Level 1 | Marketable securities
Assets:
Derivative asset total	988	836
Fair Value, Measurements, Recurring | Level 1 | Long-term investments
Assets:
Derivative asset total	241,533	200,179
Fair Value, Measurements, Recurring | Level 1 | Investments in certain funds
Assets:
Derivative asset total		0
Fair Value, Measurements, Recurring | Level 1 | Precious metal and commodity inventories recorded at fair value
Assets:
Derivative asset total	9,805	9,884
Fair Value, Measurements, Recurring | Level 1 | Economic interests in loans
Assets:
Derivative asset total	0	0
Fair Value, Measurements, Recurring | Level 1 | Commodity contracts on precious metal and commodity inventories
Assets:
Derivative asset total	0
Liabilities:
Financial instruments		0
Fair Value, Measurements, Recurring | Level 1 | Warrants
Assets:
Derivative asset total	0	0
Fair Value, Measurements, Recurring | Level 1 | Financial instrument obligations
Liabilities:
Financial instruments		12,434
Fair Value, Measurements, Recurring | Level 1 | Short call options
Liabilities:
Financial instruments	0
Fair Value, Measurements, Recurring | Level 1 | Other precious metal liabilities
Liabilities:
Financial instruments	7,824	8,589
Fair Value, Measurements, Recurring | Level 1 | Foreign currency forward exchange contracts
Assets:
Derivative asset total		0
Liabilities:
Financial instruments	0	0
Fair Value, Measurements, Recurring | Level 2
Assets:
Derivative asset total	474	15,821
Liabilities:
Total	454	609
Fair Value, Measurements, Recurring | Level 2 | Marketable securities
Assets:
Derivative asset total	451	603
Fair Value, Measurements, Recurring | Level 2 | Long-term investments
Assets:
Derivative asset total	0	14,943
Fair Value, Measurements, Recurring | Level 2 | Investments in certain funds
Assets:
Derivative asset total		0
Fair Value, Measurements, Recurring | Level 2 | Precious metal and commodity inventories recorded at fair value
Assets:
Derivative asset total	0	0
Fair Value, Measurements, Recurring | Level 2 | Economic interests in loans
Assets:
Derivative asset total	0	0
Fair Value, Measurements, Recurring | Level 2 | Commodity contracts on precious metal and commodity inventories
Assets:
Derivative asset total	23
Liabilities:
Financial instruments		159
Fair Value, Measurements, Recurring | Level 2 | Warrants
Assets:
Derivative asset total	0	0
Fair Value, Measurements, Recurring | Level 2 | Financial instrument obligations
Liabilities:
Financial instruments		0
Fair Value, Measurements, Recurring | Level 2 | Short call options
Liabilities:
Financial instruments	4
Fair Value, Measurements, Recurring | Level 2 | Other precious metal liabilities
Liabilities:
Financial instruments	0	0
Fair Value, Measurements, Recurring | Level 2 | Foreign currency forward exchange contracts
Assets:
Derivative asset total		275
Liabilities:
Financial instruments	450	450
Fair Value, Measurements, Recurring | Level 3
Assets:
Derivative asset total	76,863	61,917
Liabilities:
Total	0	0
Fair Value, Measurements, Recurring | Level 3 | Marketable securities
Assets:
Derivative asset total	0	0
Fair Value, Measurements, Recurring | Level 3 | Long-term investments
Assets:
Derivative asset total	57,913	42,601
Fair Value, Measurements, Recurring | Level 3 | Investments in certain funds
Assets:
Derivative asset total		422
Fair Value, Measurements, Recurring | Level 3 | Precious metal and commodity inventories recorded at fair value
Assets:
Derivative asset total	0	0
Fair Value, Measurements, Recurring | Level 3 | Economic interests in loans
Assets:
Derivative asset total	17,212	17,156
Fair Value, Measurements, Recurring | Level 3 | Commodity contracts on precious metal and commodity inventories
Assets:
Derivative asset total	0
Liabilities:
Financial instruments		0
Fair Value, Measurements, Recurring | Level 3 | Warrants
Assets:
Derivative asset total	1,738	1,738
Fair Value, Measurements, Recurring | Level 3 | Financial instrument obligations
Liabilities:
Financial instruments		0
Fair Value, Measurements, Recurring | Level 3 | Short call options
Liabilities:
Financial instruments	0
Fair Value, Measurements, Recurring | Level 3 | Other precious metal liabilities
Liabilities:
Financial instruments	0	0
Fair Value, Measurements, Recurring | Level 3 | Foreign currency forward exchange contracts
Assets:
Derivative asset total		0
Liabilities:
Financial instruments	$ 0	$ 0

Fair Value Measurements - Unobs

Fair Value Measurements - Unobservable Inputs Reconciliation - Assets (Details) - Fair Value, Measurements, Recurring - Level 3 - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period			$ 61,917	$ 61,916
Purchases			14,943	250
Sales and cash collections	$ (7,557)	$ (17,378)
Realized gains	6,677	11,584
Unrealized gains	883	8,508
Unrealized losses		(3,713)
Balance at end of period	76,863	61,167	76,863	61,167
Investments in Associated Companies
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period			40,643	36,223
Purchases			14,943	0
Sales and cash collections	0	0
Realized gains	0	0
Unrealized gains	883	8,276
Unrealized losses		0
Balance at end of period	56,469	44,499	56,469	44,499
Marketable Securities and Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period			21,274	25,693
Purchases			0	250
Sales and cash collections	(7,557)	(17,378)
Realized gains	6,677	11,584
Unrealized gains	0	232
Unrealized losses		(3,713)
Balance at end of period	$ 20,394	$ 16,668	$ 20,394	$ 16,668

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - Securities (Assets)	Jun. 30, 2019
Constant prepayment rate | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.0729
Constant prepayment rate | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.3578
Default rate | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.0164
Default rate | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.2754
Discount rate | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.0169
Discount rate | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.2764

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details)	Jul. 09, 2019USD ($)	Apr. 13, 2018USD ($)	Feb. 28, 2017USD ($)	Jun. 30, 2019USD ($)claim	Jun. 30, 2019USD ($)claimdefendant	Dec. 31, 2018USD ($)	Sep. 18, 2017USD ($)
Loss Contingencies [Line Items]
Accrual for environmental matters				$ 43,003,000	$ 43,003,000
Insurance recoveries				17,500,000
Estimated insurance recoveries				10,000,000	10,000,000
Handy & Harman Ltd. (HNH)
Loss Contingencies [Line Items]
Accrual for environmental matters				11,254,000	$ 11,254,000
Settlement amount				$ 30,000,000
BNS Subsidiary
Loss Contingencies [Line Items]
Claims, litigation matters (in number of claims) | claim				30,000	30,000
BNS Subsidiary | Insurance Claims
Loss Contingencies [Line Items]
Accrual relating to open and active claims				$ 1,349,000	$ 1,349,000	$ 1,349,000
Minimum | BNS Subsidiary
Loss Contingencies [Line Items]
Loss contingency, number of defendants (in defendants) | defendant					100,000
Maximum | BNS Subsidiary
Loss Contingencies [Line Items]
Claims settled, average settlement value					$ 3,000
Adjacent Parcel | Environmental and Other Matters | Minimum | Handy & Harman Ltd. (HNH)
Loss Contingencies [Line Items]
Environmental exit costs, additional loss			$ 2,000,000
Adjacent Parcel | Environmental and Other Matters | Maximum | Handy & Harman Ltd. (HNH)
Loss Contingencies [Line Items]
Environmental exit costs, additional loss			$ 6,000,000
Costs | Former Owner / Operator | Environmental and Other Matters
Loss Contingencies [Line Items]
Ownership responsibility for site investigation and remediation costs percentage allocation				75.00%	75.00%
Costs | Hhem and HandH
Loss Contingencies [Line Items]
Accrual for environmental matters				$ 1,300,000	$ 1,300,000
Investigation and remediation costs					$ 8,400,000
Costs | Hhem and HandH | Environmental and Other Matters
Loss Contingencies [Line Items]
Ownership responsibility for site investigation and remediation costs percentage allocation				25.00%	25.00%
Payments					$ 1,000,000
Investigation and remediation costs					2,700,000
Camden | SLI
Loss Contingencies [Line Items]
Accrual for environmental matters				$ 2,600,000	2,600,000
Counteroffer					300,000
Camden - Past And Future Expenses | SLI
Loss Contingencies [Line Items]
Damages claimed							$ 1,800,000
Wayne facility | SLI
Loss Contingencies [Line Items]
Accrual for environmental matters				1,200,000	$ 1,200,000
Selling, General and Administrative Expenses | Handy & Harman Ltd. (HNH)
Loss Contingencies [Line Items]
Settlement expense				$ 12,500,000
Subsequent Event | Handy & Harman Ltd. (HNH)
Loss Contingencies [Line Items]
Settlement amount	$ 30,000,000
Preferred stock | Steel Connect, Inc (STCN)
Loss Contingencies [Line Items]
Stock acquired		$ 35,000,000

Related Party Transactions - Ma

Related Party Transactions - Management Agreement (Details) - SP General Services LLC - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Related Party Transaction [Line Items]
Management fee percentage, quarterly basis (as a percent)			1.50%
Management agreement renewal, term (in years)			1 year
Notice period prior to management agreement renewal, period (in days)			60 days
Management Fee
Related Party Transaction [Line Items]
Services fees and reimbursable expenses	$ 1,975	$ 2,013	$ 3,908	$ 4,061
Unpaid amount for management fee	75		75		$ 1
Reimbursable Expenses
Related Party Transaction [Line Items]
Services fees and reimbursable expenses	1,429	$ 1,962	3,569	$ 2,987
Deferred fees payable to related party	$ 1,319		$ 1,319		$ 254

Related Party Transactions - Co

Related Party Transactions - Corporate Services (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Related Parties | Management Fee
Related Party Transaction [Line Items]
Services fees and reimbursable expenses	$ 4,474

Related Party Transactions - Ot

Related Party Transactions - Other (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Consolidation, eliminations
Related Party Transaction [Line Items]
Deposits	$ 105	$ 616
Related Parties | WebBank
Related Party Transaction [Line Items]
Deposits	$ 1,164	$ 1,667

Segment Information - Segment D

Segment Information - Segment Description (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Total revenue	$ 414,203	$ 434,437	$ 801,256	$ 800,682
Increase in interest expense	10,955	9,590	21,763	17,699
Reclassification of net investment gains (losses)
Diversified industrial net sales
Segment Reporting Information [Line Items]
Decrease in operating income (loss)		3,446		6,212
Increase in interest expense		3,446		6,212
Energy net revenue
Segment Reporting Information [Line Items]
Decrease in operating income (loss)		176		308
Increase in interest expense		176		308
Reclassification of net investment gains (losses)		(1,027)		58
Corporate and Other
Segment Reporting Information [Line Items]
Decrease in operating income (loss)		5,967		11,178
Increase in interest expense		5,967		11,178
Reclassification of net investment gains (losses)		1,027		58
Management Fee | Diversified industrial net sales
Segment Reporting Information [Line Items]
Total revenue	9,180	3,300	12,591	6,600
Management Fee | Energy net revenue
Segment Reporting Information [Line Items]
Total revenue	1,443	2,100	3,481	4,200
Management Fee | Financial services revenue
Segment Reporting Information [Line Items]
Total revenue	$ 720	$ 1,175	$ 1,895	$ 2,350

Segment Information - Schedule

Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Revenue:	$ 414,203	$ 434,437	$ 801,256	$ 800,682
Income (loss) before interest expense and income taxes:	46,707	30,751	76,098	31,339
Interest expense	(10,955)	(9,590)	(21,763)	(17,699)
Income tax provision	14,718	7,606	17,679	8,936
Net income	21,034	13,555	36,656	4,704
Total	7,118	(1,587)	(2,263)	(3,542)
Depreciation and amortization	17,856	19,619	35,391	38,321
Diversified industrial net sales
Segment Reporting Information [Line Items]
Revenue:	328,537	358,398	640,698	666,016
Income (loss) before interest expense and income taxes:	15,606	30,256	29,391	43,704
Interest expense		(3,446)		(6,212)
Depreciation and amortization	13,296	14,402	26,254	27,950
Energy net revenue
Segment Reporting Information [Line Items]
Revenue:	43,532	47,073	82,518	83,665
Income (loss) before interest expense and income taxes:	753	(1)	(578)	(4,604)
Interest expense		(176)		(308)
Depreciation and amortization	4,420	5,083	8,865	10,105
Financial services revenue
Segment Reporting Information [Line Items]
Revenue:	42,134	28,966	78,040	51,001
Income (loss) before interest expense and income taxes:	14,138	13,080	27,164	21,610
Depreciation and amortization	101	101	199	201
Corporate and other
Segment Reporting Information [Line Items]
Income (loss) before interest expense and income taxes:	16,210	(12,584)	20,121	(29,371)
Total	7,118	(1,587)	(2,263)	(3,542)
Depreciation and amortization	$ 39	$ 33	$ 73	$ 65

Regulatory Matters (Details)

Regulatory Matters (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier One Capital for Capital Adequacy, Capital Buffer To Risk Weighted Assets	2.50%
Common Equity Tier One Capital Required for Capital Adequacy with Buffer to Risk Weighted Assets, when Fully Phased-in	7.00%
Total Capital (to risk-weighted assets)
Actual	$ 153,236	$ 151,799
For capital adequacy purposes	64,142	53,807
With capital buffer	84,187	66,418
To be well capitalized under prompt corrective provisions	80,178	67,258
Tier 1 Capital (to risk-weighted assets)
Actual	142,972	143,275
For capital adequacy purposes	48,107	40,355
With capital buffer	68,151	52,966
To be well capitalized under prompt corrective provisions	64,142	53,807
Tier 1 Capital (to average assets)
Actual	142,972	143,275
For capital adequacy purposes	35,869	31,250
To be well capitalized under prompt corrective provisions	$ 44,836	$ 39,063
Risk Based Ratios (as a percent)
Total Capital (to risk-weighted assets) Actual	19.10%	22.60%
Total Capital (to risk-weighted assets) For capital adequacy purposes	8.00%	8.00%
Total Capital (to risk-weighted assets) For adequacy with capital buffer	10.50%	9.88%
Total Capital (to risk-weighted assets) To be well capitalized under prompt corrective provisions	10.00%	10.00%
Common Equity Tier One Capital Required For Capital Adequacy to Risk Weighted Assets	4.50%	4.50%
Tier 1 Capital (to risk-weighted assets) Actual	17.80%	21.30%
Tier 1 Capital (to risk-weighted assets) For adequacy purposes	6.00%	6.00%
Tier 1 Capital (to risk-weighted assets) For adequacy with capital buffer	8.50%	7.88%
Tier 1 Capital (to risk-weighted assets) To be well capitalized under prompt corrective provisions	8.00%	8.00%
Tier One Common Equity	$ 142,972	$ 143,275
Tier One Common Capital For Capital Adequacy	36,080	30,266
Tier One Common Capital To Be Well Capitalized	$ 52,116	$ 43,718
Common Equity Tier 1 Capital
Common Equity Tier One Capital to Risk Weighted Assets	17.80%	21.30%
Common Equity Tier One Capital For Adequacy With Capital Buffer To Risk Weighted Assets	$ 56,124	$ 42,877
Common Equity Tier One Capital Required For Adequacy With Capital Buffer To Risk Weighted Assets	7.00%	6.38%
Common Equity Tier One Capital Required to be Well-Capitalized to Risk Weighted Assets	6.50%	6.50%
Leverage Ratios (as a percent)
Tier 1 Capital (to average assets) Actual	15.90%	18.30%
Tier 1 Capital (to average assets) For capital adequacy purposes	4.00%	4.00%
Tier 1 Capital (to average assets) To be well capitalized under prompt corrective provisions	5.00%	5.00%
Minimum
Risk Based Ratios (as a percent)
Total Capital (to risk-weighted assets) For adequacy with capital buffer	10.50%
Tier 1 Capital (to risk-weighted assets) For adequacy purposes	4.00%
Tier 1 Capital (to risk-weighted assets) For adequacy with capital buffer	8.50%
Maximum
Risk Based Ratios (as a percent)
Tier 1 Capital (to risk-weighted assets) For adequacy purposes	6.00%

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information - Restrictions on Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents	$ 206,171	$ 334,884	$ 324,805
Restricted cash	0	12,434	13,496
Total cash, cash equivalents and restricted cash	$ 206,171	$ 347,318	$ 338,301	$ 434,384

Supplemental Cash Flow Inform_4

Supplemental Cash Flow Information - Schedule of Cash Flows, Supplemental Disclosures (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Supplemental Cash Flow Information [Abstract]
Interest	$ 25,131	$ 18,779
Taxes	2,949	2,759
Noncash Investing and Financing Items [Abstract]
Contingent purchase price (future earn-out) associated with the Dunmore acquisition	0	3,800
Common Units
Noncash Investing and Financing Items [Abstract]
Issuance of units	0	3,159
Preferred Units
Noncash Investing and Financing Items [Abstract]
Issuance of units	$ 0	$ 3,812