Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Current assets:
Cash and cash equivalents	$ 63,187	$ 103,247	$ 57,620
Receivables:
Trade	78,504	89,311
Other	13,741	17,697
Total receivables	92,245	107,008
Inventories	137,240	106,795
Unbilled revenues	57,560	63,874
Other current assets	26,539	11,517
Total current assets	376,771	392,441
Property, plant and equipment:
Gross property, plant and equipment	1,239,701	1,665,740
Less accumulated depreciation, depletion and amortization	(657,109)	(923,905)
Net property, plant and equipment	582,592	741,835
Advanced coal royalties	12,930	21,404
Restricted investments, reclamation deposits and bond collateral	205,812	200,194
Unbilled revenues, less current portion	218,892	225,245
Investment in joint venture	24,716	27,763
Other assets	35,882	55,036
Total Assets	1,457,595	1,663,918	$ 1,670,219
Current liabilities:
Current installments of long-term debt	1,071,533	983,427
Accounts payable and accrued expenses:
Trade and other accrued liabilities	106,125	121,489
Interest payable	26,042	22,840
Production taxes	40,915	41,688
Postretirement medical benefits	14,734	14,734
Deferred revenue	6,120	3,201
Asset retirement obligations	50,110	48,429
Other current liabilities	8,164	9,401
Total current liabilities	1,323,743	1,245,209
Long-term debt, less current installments	15,416	64,980
Postretirement medical benefits, less current portion	319,583	317,407
Pension and SERP obligations, less current portion	42,827	43,585
Asset retirement obligations, less current portion	412,613	426,038
Other liabilities	29,598	31,477
Total liabilities	2,143,780	2,128,696
Shareholders' deficit:
Common stock of $0.01 par value: Authorized 30,000,000 shares; Issued and outstanding 18,788,532 shares at June 30, 2018 and 18,771,643 shares at December 31, 2017	188	188
Other paid-in capital	252,354	250,494
Accumulated other comprehensive loss	(170,289)	(158,699)
Accumulated deficit	(757,949)	(552,263)
Total Westmoreland Coal Company shareholders’ deficit	(675,696)	(460,280)
Noncontrolling interests in consolidated subsidiaries	(10,489)	(4,498)
Total deficit	(686,185)	(464,778)
Total Liabilities and Shareholders' Deficit	$ 1,457,595	$ 1,663,918