Current and Long-Term Financing (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of Debt

The following table summarizes the Company's available and outstanding borrowings:

	December 31
	2015			2014
Total outstanding borrowings:
Revolving credit agreements:
NACoal	$	100,000		$	180,000
HBB	57,513			52,845
KC	—			—
	$	157,513		$	232,845
Capital lease obligations and other term loans — NACoal	$	11,617		$	14,445
Other debt — HBB	852			608
Total debt outstanding	$	169,982		$	247,898
Current portion of borrowings outstanding:
NACoal	$	1,504		$	56,467
HBB	8,365			—
KC	—			—
	$	9,869		$	56,467
Long-term portion of borrowings outstanding:
NACoal	$	110,113		$	137,978
HBB	50,000			53,453
	$	160,113		$	191,431
Total available borrowings, net of limitations, under revolving credit agreements:
NACoal	$	223,795		$	223,995
HBB	111,590			112,105
KC	18,299			22,596
	$	353,684		$	358,696
Unused revolving credit agreements:
NACoal	$	123,795		$	43,995
HBB	54,077			59,260
KC	18,299			22,596
	$	196,171		$	125,851
Weighted average stated interest rate on total borrowings:
NACoal	2.4		%	2.5		%
HBB	2.3		%	2.0		%
KC	N/A			N/A
Weighted average effective interest rate on total borrowings (including interest rate swap agreements):
NACoal	3.3		%	3.1		%
HBB	2.7		%	2.5		%
KC	N/A			N/A

Schedule of Maturities of Total Debt, Excluding Capital Leases

Annual maturities of total debt, excluding capital leases, are as follows:

2016	$	—
2017	—
2018	100,000
2019	59,811
2020	—
Thereafter	—
	$	159,811