Schedule of Unaudited Proforma Results of Operations (Parenthetical) (Detail) (USD $)
In Thousands, except Share data in Millions, unless otherwise specified |
1 Months Ended | 12 Months Ended | ||
---|---|---|---|---|
Jan. 31, 2013
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] | ||||
Acquisition fees and expenses | $ 23,931 | $ 18,840 | $ 6,585 | |
Shares issued to fund acquisition | 40.8 | 36.2 | ||
Acquisition-related Costs | ||||
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] | ||||
Acquisition fees and expenses | 23,900 | 18,800 | 6,600 | |
Acquisition-related Costs | Proforma results adjusted to exclude | ||||
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items] | ||||
Acquisition fees and expenses | $ 20,500 | $ 16,500 |