Deferred compensation (Tables)

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Schedule of amounts related to cash LTIP

A summary of compensation expense for our cash awards is presented below:

	Three months ended June 30,				Six months ended June 30,
	2020		2019		2020		2019
Cash LTIP expense (net of amounts capitalized)	$	187	$	67	$	354	$	158

Schedule of rollforward of unvested deferred compensation

A summary of our restricted share activity is presented below:

	Time Shares					Performance Shares
	Weighted average award date fair value		Restricted shares	Vest date fair value		Weighted average award date fair value		Restricted shares
	($ per share)					($ per share)
Unvested and outstanding at January 1, 2020	$	5.41	1,069,505			$	1.53	1,089,343
Granted	$	—	—			$	—	—
Vested	$	15.71	(203,888)	$	130	$	—	—
Forfeited	$	8.87	(82,658)			$	6.94	(20,833)
Cancelled	$	20.05	(12,088)			$	—	—
Unvested and outstanding at June 30, 2020	$	2.09	770,871			$	1.33	1,068,510

A summary of our RSU activity is presented below:

	Equity classified RSUs
	Service-condition RSUs					Market condition RSUs
	Weighted average award date fair value		Restricted units	Vest date fair value		Weighted average award date fair value		Restricted units
	($ per share)					($ per share)
Unvested and outstanding at January 1, 2020	$	2.41	638,383			$	1.36	390,000
Granted	$	1.95	4,500			$	—	—
Vested	$	—	—	$	—	$	—	—
Forfeited	$	1.56	(228,094)			$	1.36	(200,000)
Unvested and outstanding at June 30, 2020	$	2.87	414,789			$	1.36	190,000

	Liability classified RSUs
	Weighted average award date fair value		Restricted units	Vest date fair value
	($ per share)
Unvested and outstanding at January 1, 2020	$	4.57	75,779
Granted	$	—	—
Vested	$	1.33	(60,000)	$	41
Forfeited	$	17.66	(1,515)
Unvested and outstanding at June 30, 2020	$	16.83	14,264

Schedule of stock-based compensation cost

Stock-based compensation expense is as follows for the periods indicated:

	Three months ended June 30,				Six months ended June 30,
	2020		2019		2020		2019
Stock-based compensation cost	$	101	$	1,260	$	771	$	2,720
Less: stock-based compensation cost capitalized	(7)		(399)		(281)		(1,025)
Stock-based compensation expense	$	94	$	861	$	490	$	1,695
Number of vested shares repurchased or settled in cash	92,649		126,231		96,505		206,653
Payments for stock-based compensation	53		708		59		1,171