Equity - Share-based Awards Expensed & Capitalized Amounts (Detail) - Amended 2013 Incentive Award Plan - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expensed share-based compensation	$ 3,709	$ 2,709	$ 7,279	$ 5,288
Capitalized share-based compensation	56	42	113	76
Total share-based compensation	3,765	$ 2,751	7,392	$ 5,364
Unrecognized compensation expense related to non-vested shares	$ 20,500		$ 20,500
Weighted average remaining vesting period			27 months

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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