Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Schedule of Cost, Gross Unrealized Holding Gains Losses, and Fair Value of Available-for-Sale Securities

The cost, gross unrealized holding gains, gross unrealized holding losses, and fair value of available-for-sale securities by type were as follows (in thousands):

	Cost		Gross unrealized holding gains		Gross unrealized holding (losses)			Fair Value
At December 31, 2016
Equity Securities	$	10,168	$	4,780	$	(589	)	$	14,359
At December 31, 2015
Equity Securities	$	10,614	$	3,958	$	(1,141	)	$	13,431

Schedule of Gross Unrealized Holding Losses and Fair Value of Marketable Securities

The fair value and gross unrealized holding losses of our marketable securities that are not deemed to be other-than-temporarily impaired aggregated by type and length of time they have been in a continuous unrealized loss position were as follows (in thousands):

	Less than 12 Months				12 Months or Greater				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
At December 31, 2016
Equity securities	$	426	$	41	$	2,438	$	548	$	2,864	$	589
At December 31, 2015
Equity securities	$	3,099	$	987	$	345	$	154	$	3,444	$	1,141

Schedule of Inventories

At December 31, inventory consists of the following (in thousands):

	2016		2015
Raw materials and supplies	$	7,077	$	7,660
Finished goods		1,540		962
	$	8,617	$	8,622

Estimated Useful Lives of Assets

Property and equipment, including leasehold improvements, are carried at cost less accumulated depreciation.  Depreciation is computed using the straight-line method over the estimated useful lives of the assets as follows:

Description	Life in Years
Transportation equipment	3 - 15
Other operating assets	3 - 15
Information technology equipment	3 - 5
Buildings and related assets	10 - 39

Schedule of Identifiable Intangible Assets

Our identifiable intangible assets as of December 31, 2016 and 2015 are as follows (in thousands):

	2016			2015
Indefinite Lived Intangibles:
Trademarks	$	2,500		$	2,500
Definite Lived Intangibles:
Agent and customer relationships		65,060			65,060
Customer contracts		20,600			20,600
Less:  accumulated amortization		(50,971	)		(43,495	)
Intangible assets, net	$	34,689		$	42,165
Total Identifiable Intangible Assets	$	37,189		$	44,665

Estimated Amortization Expense by Year

Estimated amortization expense by year is as follows (in thousands):

2017	$	5,995
2018		2,517
2019		2,265
2020		1,970
2021		1,959
Thereafter		19,983
Total	$	34,689