Current and Long-Term Financing (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Schedule of Debt

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

	December 31
	2014			2013
Total outstanding borrowings:
Revolving credit agreements:
NACoal	$	180,000		$	140,000
HBB	52,845			18,447
KC	—			1,460
	$	232,845		$	159,907
Capital lease obligations and other term loans — NACoal	$	14,445		$	17,414
Private Placement Notes — NACoal	—			6,429
Other debt — HBB	608			—
Total debt outstanding	$	247,898		$	183,750
Current portion of borrowings outstanding:
NACoal	$	56,467		$	29,859
KC	—			1,460
	$	56,467		$	31,319
Long-term portion of borrowings outstanding:
NACoal	$	137,978		$	133,984
HBB	53,453			18,447
	$	191,431		$	152,431
Total available borrowings, net of limitations, under revolving credit agreements:
NACoal	$	223,995		$	223,936
HBB	112,105			111,584
KC	22,596			27,000
	$	358,696		$	362,520
Unused revolving credit agreements:
NACoal	$	43,995		$	83,936
HBB	59,260			93,137
KC	22,596			25,540
	$	125,851		$	202,613
Weighted average stated interest rate on total borrowings:
NACoal	2.5		%	2.3		%
HBB	2.0		%	3.2		%
KC	N/A			4.3		%
Weighted average effective interest rate on total borrowings (including interest rate swap agreements):
NACoal	3.1		%	3.0		%
HBB	2.5		%	3.2		%
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:

2015	$	55,000
2016	608
2017	—
2018	125,000
2019	55,652
Thereafter	—
	$	236,260