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Supplemental Cash Flow Information - Additional Information Relating to Cash Flow Activities (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash payments (refunds) for:
Income taxes, net	$ (962)	$ 1,040
Noncash continuing investing and financing activities:
Accounts payable associated with additions of property, plant and equipment	13,156	13,967
Accounts payable associated with debt issuance costs incurred relating to senior secured notes	1,109
Series E Redeemable Preferred Stock [Member]
Noncash continuing investing and financing activities:
Dividends accrued on redeemable preferred	12,966	11,325
Accretion of redeemable preferred	$ 2,401	$ 3,217

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Noncash portion of accretion of redeemable preferred stock.

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Cash payments for.

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- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

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-Publisher FASB
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-Section 50
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The amount of debt issuance costs that were incurred during a noncash or partial noncash transaction.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Accretion of temporary equity during the period due to cash, stock, and in-kind dividends. This item is an adjustment to net income necessary to derive net income apportioned to common stockholders and is to be distinguished from Temporary Equity, Accretion of Dividends (Temporary Equity, Accretion of Dividends).

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