SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Mar. 31, 2018

Accounting Policies [Abstract]

Schedule of Inventories

Inventories consist of the following:

	March 31,
	2018		2017
	(dollars in thousands)
Raw Materials and Materials-in-Progress	$	121,628	$	122,736
Finished Cement		24,089		24,428
Aggregates		7,787		7,686
Gypsum Wallboard		8,477		7,951
Paperboard		8,602		8,635
Frac Sand		1,696		2,907
Repair Parts and Supplies		79,878		73,732
Fuel and Coal		6,002		4,771
	$	258,159	$	252,846

Schedule of Property, Plant and Equipment Estimated Lives

The estimated lives of the related assets are as follows:

Plants	20 to 30 years
Buildings	20 to 40 years
Machinery and Equipment	3 to 25 years

Schedule of Intangible Assets, Including Impact of Impairment Charge

Intangible Assets, including the impact of the impairment charges discussed above, at March 31,2018 and2017, consist of the following:

	March 31, 2018
	Amortization Period	Cost		Accumulated Amortization			Net
	(dollars in thousands)
Goodwill and Intangible Assets:
Customer Contracts and Relationships	15 years	$	72,260	$	(58,732	)	$	13,528
Sales Contracts	4 years		2,500		(2,500	)		—
Permits	40 years		28,640		(8,037	)		20,603
Goodwill			205,211		—			205,211
Total Goodwill and Intangible Assets		$	308,611	$	(69,269	)	$	239,342

	March 31, 2017
	Amortization Period	Cost		Accumulated Amortization			Net
	(dollars in thousands)
Goodwill and Intangible Assets:
Customer Contracts and Relationships	15 years	$	72,260	$	(56,303	)	$	15,957
Sales Contracts	4 years		2,500		(2,500	)	$	—
Permits	40 years		28,440		(7,262	)	$	21,178
Goodwill			198,370		—		$	198,370
Total Goodwill and Intangible Assets		$	301,570	$	(66,065	)	$	235,505

Schedule of Total Selling, General and Administrative Expenses

Total Selling, General, and Administrative expenses for each of the periods are summarized as follows:

	For the Years Ended March 31,
	2018		2017		2016
	(dollars in thousands)
Operating Units Selling, G&A	$	62,529	$	57,004	$	56,110
Corporate G&A		41,205		33,940		37,193
	$	103,734	$	90,944	$	93,303

Schedule of Earnings Per Share

	For the Years Ended March 31,
	2018			2017			2016
Weighted-Average Shares of Common Stock Outstanding		48,141,226			47,931,518			49,471,157
Effect of Dilutive Shares:
Assumed Exercise of Outstanding Dilutive Options		1,013,764			1,000,556			1,146,807
Less Shares Repurchased from Proceeds of Assumed Exercised Options		(727,904	)		(726,223	)		(768,886	)
Restricted Stock Units		218,900			155,435			221,751
Weighted-Average Common Stock and Dilutive Securities Outstanding		48,645,986			48,361,286			50,070,829