Stockholders Equity - Additional Information (Details)												6 Months Ended
	Jul. 03, 2017 USD ($)	Apr. 03, 2017 USD ($)	Jan. 03, 2017 USD ($)	Oct. 03, 2016 USD ($)	Jul. 01, 2016 USD ($)	Apr. 01, 2016 USD ($)	Mar. 02, 2016 USD ($)	Feb. 17, 2016 USD ($) shares	Jan. 04, 2016 USD ($) shares	Feb. 06, 2015 USD ($) shares	Jan. 05, 2015 USD ($) shares	Jun. 30, 2017 USD ($) vote_per_stock $ / shares shares	Jun. 30, 2016 USD ($)	Dec. 31, 2016 $ / shares shares	Nov. 01, 2016 $ / shares shares
Class of Stock [Line Items]
Capital Stock, Shares Authorized															155,000,000
Common Stock, Shares Authorized												150,000,000		150,000,000	150,000,000
Common stock, par value (usd per share) | $ / shares												$ 0.01		$ 0.01	$ 0.01
Preferred Stock, Shares Authorized															5,000,000
Preferred Stock, Par or Stated Value Per Share | $ / shares															$ 0.01
Proceeds from Issuance of Common Stock | $								$ 286,000,000.0		$ 49,500,000.0		$ 0	$ 286,003,000
Dividends, Preferred Stock, Cash | $		$ 32,087	$ 32,087	$ 32,087	$ 32,087	$ 32,087
Series B
Class of Stock [Line Items]
Voting Rights Per Stock | vote_per_stock												0.054
Preferred Stock, Shares Outstanding												44,258		44,258
Preferred Stock, Shares Authorized												5,000,000		5,000,000
Preferred Stock, Par or Stated Value Per Share | $ / shares												$ 0.01		$ 0.01
Dividends, Preferred Stock, Cash | $							$ 167,000					$ 167,000
Convertible Preferred Stock, Shares Issued upon Conversion												0.054
Preferred Stock, Liquidation Preference Per Share | $ / shares												$ 29		$ 29
Preferred Stock, Dividends Per Share, Declared | $ / shares												$ 2.90
Dividends, Preferred Stock, Multiplier												1.3
Common Stock [Member]
Class of Stock [Line Items]
Dividends, Preferred Stock, Stock, Price Per Share | $ / shares												$ 3.77
Number Of Trading Days Used For Estimate Of Share Value												20 days
Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Common Stock, Shares Authorized									20,138,888		1,408,451
Sale of Stock, Value of Subscription Rights to be Exercised within Ten Days of Commencement | $									$ 30,000,000
Sale of Stock, Value of Subscription Rights to be Exercised, Maximum | $									290,000,000		$ 50,000,000
Proceeds from Issuance of Private Placement | $								$ 290,000,000		50,000,000
Sale of Stock, Commitment Fee | $									$ 1,500,000	$ 250,000
Sale of Stock, Commitment Fee, Percent									0.50%	0.50%
Common Stock [Member] | Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued								20,138,888		1,408,451
Basic Subscription Rights [Member] | Common Stock [Member] | Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued								176,086		10,658
Over Subscription Rights [Member] | Common Stock [Member] | Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued								13,136,817		864,360
Kien Huat Realty Limited [Member] | Common Stock [Member] | Standby Purchase Agreement [Member]
Class of Stock [Line Items]
Shares, Issued								6,825,985		533,433
Expense Reimbursement [Member] | Kien Huat Realty Limited [Member]
Class of Stock [Line Items]
Related Party Transaction, Amounts of Transaction | $								$ 50,000		$ 40,000
Subsequent Event [Member]
Class of Stock [Line Items]
Dividends, Preferred Stock, Cash | $	$ 32,087