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Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Feb. 05, 2020	Jan. 02, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 05, 2019
Subsequent Event [Line Items]
Payments on long-term debt			$ 1,000	$ 1,100	$ 1,100
Dividend payments			$ 0.09	$ 0.09	$ 0.09
Quarterly dividend payable, aggregate amount						$ 4,300
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividend declaration date	Feb. 05, 2020
Dividend payments	$ 0.09
Dividend record date	Feb. 20, 2020
Dividend payment date	Mar. 05, 2019
Subsequent Event [Member] | Taxable Revenue Bonds [Member]
Subsequent Event [Line Items]
Payments on long-term debt		$ 24,600

X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
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- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

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- Definition

Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

+ References

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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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